Tracing of sql statements

in the debug level normally we can trace the step by step. but how can we trace the sql statements.

In Debug mode
Go to menu Break Poiunts-> Break Point At -> Statement
Give the Break Point At Statement As  SELECT
Now you will stop for each and every select in the Debug mode.
In general we use Sql trace.

Similar Messages

  • Tracing / Profiling SQL statements in Sybase

    Hi Guys, I would like to capture the SQL statements that have been fired from a web app (bit like SQL Server's profiler). Is there such a tool / facility?Please note that I cannot use dbcc commands like traceon as DBA's wont grant me sa rights (in dev...crazy eh).
    Is there any easy way of doing this?
    Thanks

    General comment about MDA monitoring (tools) ...
    If the local DBAs don't have any tools for monitoring MDA tables there are a few 3rd party tools that can provide MDA monitoring (ie, little/no programming required by the local DBAs).
    Most of these 3rd party tools cost $$ to purchase, and each one has its strengths and weaknesses.
    There is one 3rd party tool (that I know of) that is free, highly configurable, and IMHO does a very good job at collecting/presenting MDA data (especially from a historical perspective): ASEMON
    I personally:
    - use ASEMON for P&T work
    - install/configure ASEMON at my clients when a) they don't already have a MDA monitoring capability or b) they want to free up the $$ they're paying for some other 3rd party tool
    NOTE: As Mike has pointed out, MDA collections can grow quite large and rather quickly.  This is true with ASEMON, too.

  • Missingf SQL Statements in v$sqlarea

    Hi,
    i´m tracing some sql statements and from time to time they disapear very quickly from the shared pool.
    i´m looking into v$sqlarea and the funny thing is, i thought "all" historical statments will be copied to dba_hist_sqltext. But thery are missing there too.
    Some statments are away after a couple of minutes, but the shared pool is quit large enough.
    I had the same problem inside the em (10g) many (historical) statements can´t be seen after a couple of minutes.
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    Thanks
    Marco

    select * from v$sgastat where name like '%free%'
    shared pool     ksuloi: long op free list     16
    shared pool     message pool freequeue     700592
    shared pool     kghx free lists     19008
    shared pool     free memory     129955780 <=========== !!!!
    shared pool     kglsim free obj list     204
    shared pool     sim kghx free lists     4
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    large pool     free memory     3458568
    java pool     free memory     4194304
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  • Tracing SQL statements

    I have an application that sends SQL statements to an oracle engine using odbc. Is there a way to trace the SQL statements from the unix server that the oracle engine resides on? I do not want to use the trace function in the ODBC data source administrator.
    Thanks,
    -Al

    Idebtified your connect and then set trace for session using
    exec dbms_system.SET_EV(SID,SERIAL#,10046,12,'');
    10046 is event name and 12 is level.
    SID and serial# you will get from v$session
    Cheer,
    Virag Sharma
    http://virag.sharma.googlepages.com/

  • Find start and end execution time of a sql statement?

    I am have databases with 10.2.0.3 and 9.2.0.8 on HP UNIX 11i and Windows 200x.
    I am not in a position to turn on sql tracing in production environment. Yet, I want to find when a sql statement started executing and when it ended. When I look at v$sql, it has information such FIRST_LOAD_TIME, LAST_LOAD_TIME etc. No where it has information last time statement began execution and when it ended execution.. It shows no of executions, elapsed time etc, but they are cumulative. Is there a way to find individual times (time information each time a sql statement was executed. – its start time, its end time ….)? If I were to write my own program how will I do it?
    Along the same line, when an AWR snapshot is shown, does it only include statements executed during that snapshot or it can have statements from the past if they have not been flushed from shared memory. If it only has statements executed in the snapshot period, how does it know when statement began execution?

    Hi,
    For oracle 10g you can use below query to find start and end time, you can see data for last seven days.
    select min(to_char(a.sample_time,'DD-MON-YY HH24:MI:SS')) "Start time", max(to_char(a.sample_time,'DD-MON-YY HH24:MI:SS')) "End Time", b.sql_text
    from dba_HIST_ACTIVE_SESS_HISTORY a,DBA_HIST_SQLTEXT b where
    a.sql_id=b.sql_id
    order by 1;
    Regards
    Jafar

  • How to trace the SQL statements executed in a database

    I am using Oracle9i Enterprise Edition Release 9.2.0.7.0 - 64bit Production on a sun server and I am not familiar with Oracle but with MS SQL there is a tool called profiler, it allows you to monitor and see what is going on in a specific databases whether it is SQL statement executins or anything else. I have installed the oracle enterpise manager console at my windows client and I tried to look for a tool similar to the profiler in the MS SQL. I tried the TRACE DATA VIEWER and I inputed the login credentials but I don' t actually know the service name and I am getting an error ORA-12514 The TSN listener can not resolve the service name given in the connect descriptor. Therefore, am I on the right road so i have to look for the service name or are there any other ways i can trace the currently executing SQL statement in a specific database. I am really stuck there. I would appreciate if somebody help me out. Thanks
    Abdel Moalim

    Abdel Moalim wrote:
    I am using Oracle9i Enterprise Edition Release 9.2.0.7.0 - 64bit Production on a sun server and I am not familiar with Oracle but with MS SQL there is a tool called profiler, it allows you to monitor and see what is going on in a specific databases whether it is SQL statement executins or anything else. I have installed the oracle enterpise manager console at my windows client and I tried to look for a tool similar to the profiler in the MS SQL. I tried the TRACE DATA VIEWER and I inputed the login credentials but I don' t actually know the service name and I am getting an error ORA-12514 The TSN listener can not resolve the service name given in the connect descriptor. Therefore, am I on the right road so i have to look for the service name or are there any other ways i can trace the currently executing SQL statement in a specific database. I am really stuck there. I would appreciate if somebody help me out. Thanks
    Abdel MoalimHi
    I see others have answered the network connectivity issues, I'll try and address the tracing issue. Your best bet is to review http://www.petefinnigan.com/ramblings/how_to_set_trace.htm for the many ways in which a sessions SQL and indeed other activity can be traced. In version 7 (which I'm guessing is yours from the sid) the only profiler available was tkprof (Trace Kernel Profiler) which will do a good job of analysing your trace file. The trace files themselves are generated on the server in a protected directory so you may need to ask your dba for access to them. There are other profilers around now (I have one which runs in v9 and higher database at http://www.niall.litchfield.dial.pipex.com/SimpleProfiler/SimpleProfiler.html which will analyse your files for example) but tkprof is the start point - or else just reading the trace file in a text editor. There is also a utility written by the Oracle Apps guys trcanalyzer that will do a good job for you. In general the interface is poor compared with the ms utility but the information is deeper and more helpful
    Niall Litchfield
    http://www.orawin.info/

  • SQL Statement Tunning Request

    Please help to tune the below query. I have provided following information
    1. Query To be tuned
    2. Parameter Relevant to Optimizer
    3. Explain Plan and AutoTrace Ouput
    4. Query traced at Level 8 and Its Tkprof Ouput
    5. EXPLAIN PLAN output of DBMS_XPLAN.DISPLAY
    INFORMATION 1. SQL QUERY TO BE TUNED
    SELECT DISTINCT C.MAN_WIP_T_IN_TS,
    C.RCP_NO,
    C.WRK_CTR_ID,
    C.WTR_FREE_TST_FLG,
    A.COMPANY_ID,
    A.PROD_ORDER,
    A.PART_NO,
    A.CARRIER_QTY,
    B.PHY_CARID,
    C.WIP_SEQ,
    A.RCP_NO "CARRIER_RCP"
    FROM dbadmintest.PF2_PROD_ORDER_CARRIER A,
    PF2_PHYSICAL_CARRIER B,
    WORK_IN_PROCESS C
    WHERE C.UNIT_TYPE_CD = RTRIM('TL7')
    AND C.UNIT_NM = RTRIM('T41')
    AND C.WIP_TYPE_CD = 'HANDHELD'
    AND C.PHY_CARRIER_SEQ = A.PHY_CARRIER_SEQ
    AND A.PHY_CARRIER_SEQ = B.PHY_CARRIER_SEQ
    AND ((A.CARRIER_LD_TS <= C.MAN_WIP_T_IN_TS
    AND A.CARRIER_UNLD_TS >= C.MAN_WIP_T_IN_TS)
    OR ( A.CARRIER_LD_TS <= C.MAN_WIP_T_IN_TS
    AND A.CARRIER_UNLD_TS IS NULL))
    AND ((A.CARRIER_UNLD_TS >= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_UNLD_TS <= TO_DATE('2012-01-12 10:03:00', 'YYYY-MM-DD HH24:MI:SS'))
    OR (A.CARRIER_LD_TS >= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_LD_TS <= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS'))
    OR (A.CARRIER_LD_TS <= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_UNLD_TS IS NULL)
    OR (A.CARRIER_LD_TS <= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_UNLD_TS >= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')))
    ORDER BY 6,5,1
    INFORMATION 2. PARAMETER RELEVANT TO OPTIMIZER
    NAME           TYPE      VALUE
    optimizer_dynamic_sampling      integer      2
    optimizer_features_enable      string      10.2.0.4
    optimizer_index_caching      integer      0
    optimizer_index_cost_adj      integer      100
    optimizer_mode           string      ALL_ROWS
    optimizer_secure_view_merging      boolean      TRUE
    db_file_multiblock_read_count      integer      16
    cursor_sharing           string      EXACT
    SQL> column sname format a20          
    column pname format a20          
    column pval2 format a20          
    select          
    sname          
    , pname          
    , pval1          
    , pval2          
    from sys.aux_stats$;SQL>      
    SNAME      PNAME      PVAL1      PVAL2
    SYSSTATS_INFO      STATUS           COMPLETED
    SYSSTATS_INFO      DSTART           08-25-2009 07:27
    SYSSTATS_INFO      DSTOP           08-25-2009 07:27
    SYSSTATS_INFO      FLAGS      1
    SYSSTATS_MAIN      CPUSPEEDNW      1592.87183
    SYSSTATS_MAIN      IOSEEKTIM      10
    SYSSTATS_MAIN      IOTFRSPEED      4096
    SYSSTATS_MAIN      SREADTIM
    SYSSTATS_MAIN      MREADTIM
    SYSSTATS_MAIN      CPUSPEED
    SYSSTATS_MAIN      MBRC
    SYSSTATS_MAIN      MAXTHR
    SYSSTATS_MAIN      SLAVETHR
    INFORMATION 3. EXPLAIN PLAN AND AUTOTRACE OUTPUT
    Execution Plan
    Plan hash value: 850402268
    | Id | Operation                | Name                | Rows      | Bytes      | Cost (%CPU)     | Time      |
    | 0 | SELECT STATEMENT           |                | 11      | 1100      | 1568      (1)     | 00:00:19      |
    | 1 | SORT UNIQUE                |                | 11      | 1100      | 1567      (1)     | 00:00:19      |
    |* 2 | HASH JOIN                |                | 11      | 1100      | 1566      (1)     | 00:00:19      |
    |* 3 | TABLE ACCESS BY INDEX ROWID      | PF2_PROD_ORDER_CARRIER      | 5      | 270      | 763      (0)     | 00:00:10      |
    | 4 | NESTED LOOPS           |                | 11      | 1001      | 1562      (1)     | 00:00:19      |
    |* 5 | TABLE ACCESS BY INDEX ROWID     | WORK_IN_PROCESS           | 2      | 74      | 35      (0)     | 00:00:01      |
    |* 6 | INDEX RANGE SCAN           | WORK_IN_PROCESS_IX2           | 56      |      | 3      (0)     | 00:00:01      |
    |* 7 | INDEX RANGE SCAN           | PF2_PROD_ORDER_CARRIER_IX3      | 2361      |      | 6      (0)     | 00:00:01      |
    | 8 | TABLE ACCESS FULL           | PF2_PHYSICAL_CARRIER           | 1736      | 15624      | 4      (0)     | 00:00:01 |
    Predicate Information (identified by operation id):
    2 - access("A"."PHY_CARRIER_SEQ"="B"."PHY_CARRIER_SEQ")
    3 - filter(("A"."CARRIER_UNLD_TS" IS NULL AND "A"."CARRIER_LD_TS"<=TO_DATE(' 2012-01-12 08:03:00',
    'syyyy-mm-dd hh24:mi:ss') OR "A"."CARRIER_UNLD_TS">=TO_DATE(' 2012-01-12 08:03:00', 'syyyy-mm-dd
    hh24:mi:ss') AND "A"."CARRIER_LD_TS"<=TO_DATE(' 2012-01-12 08:03:00', 'syyyy-mm-dd hh24:mi:ss') OR
    "A"."CARRIER_UNLD_TS">=TO_DATE(' 2012-01-12 08:03:00', 'syyyy-mm-dd hh24:mi:ss') AND
    "A"."CARRIER_UNLD_TS"<=TO_DATE(' 2012-01-12 10:03:00', 'syyyy-mm-dd hh24:mi:ss') OR
    "A"."CARRIER_LD_TS"=TO_DATE(' 2012-01-12 08:03:00', 'syyyy-mm-dd hh24:mi:ss')) AND
    ("A"."CARRIER_LD_TS"<="C"."MAN_WIP_T_IN_TS" AND "A"."CARRIER_UNLD_TS">="C"."MAN_WIP_T_IN_TS" OR
    "A"."CARRIER_UNLD_TS" IS NULL AND "A"."CARRIER_LD_TS"<="C"."MAN_WIP_T_IN_TS"))
    5 - filter("C"."WIP_TYPE_CD"='HANDHELD' AND "C"."PHY_CARRIER_SEQ" IS NOT NULL)
    6 - access("C"."UNIT_TYPE_CD"='TL7' AND "C"."UNIT_NM"='T41')
    7 - access("C"."PHY_CARRIER_SEQ"="A"."PHY_CARRIER_SEQ")
    filter("A"."PHY_CARRIER_SEQ" IS NOT NULL)
    Statistics
    1           recursive calls
    0           db block gets
    13525998      consistent gets
    7024           physical reads
    0           redo size
    1758           bytes sent via SQL*Net to client
    492           bytes received via SQL*Net from client
    2           SQL*Net roundtrips to/from client
    1           sorts (memory)
    0           sorts (disk)
    14           rows processed
    INFORMATION 4. QUERY TRACES AT LEVEL 8 AND TKPROF OUTPUT
    TKPROF: Release 10.2.0.4.0 - Production on Wed Jan 18 01:48:53 2012
    Copyright (c) 1982, 2007, Oracle. All rights reserved.
    Trace file: ././ppf2_ora_5439924.trc
    Sort options: default
    count = number of times OCI procedure was executed
    cpu = cpu time in seconds executing
    elapsed = elapsed time in seconds executing
    disk = number of physical reads of buffers from disk
    query = number of buffers gotten for consistent read
    current = number of buffers gotten in current mode (usually for update)
    rows = number of rows processed by the fetch or execute call
    SELECT DISTINCT C.MAN_WIP_T_IN_TS,
    C.RCP_NO,
    C.WRK_CTR_ID,
    C.WTR_FREE_TST_FLG,
    A.COMPANY_ID,
    A.PROD_ORDER,
    A.PART_NO,
    A.CARRIER_QTY,
    B.PHY_CARID,
    C.WIP_SEQ,
    A.RCP_NO "CARRIER_RCP"
    FROM PF2_PROD_ORDER_CARRIER A,
    PF2_PHYSICAL_CARRIER B,
    WORK_IN_PROCESS C
    WHERE C.UNIT_TYPE_CD = RTRIM('TL7')
    AND C.UNIT_NM = RTRIM('T41')
    AND C.WIP_TYPE_CD = 'HANDHELD'
    AND C.PHY_CARRIER_SEQ = A.PHY_CARRIER_SEQ
    AND A.PHY_CARRIER_SEQ = B.PHY_CARRIER_SEQ
    AND ((A.CARRIER_LD_TS <= C.MAN_WIP_T_IN_TS
    AND A.CARRIER_UNLD_TS >= C.MAN_WIP_T_IN_TS)
    OR ( A.CARRIER_LD_TS <= C.MAN_WIP_T_IN_TS
    AND A.CARRIER_UNLD_TS IS NULL))
    AND ((A.CARRIER_UNLD_TS >= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_UNLD_TS <= TO_DATE('2012-01-12 10:03:00', 'YYYY-MM-DD HH24:MI:SS'))
    OR (A.CARRIER_LD_TS >= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_LD_TS <= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS'))
    OR (A.CARRIER_LD_TS <= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_UNLD_TS IS NULL)
    OR (A.CARRIER_LD_TS <= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')
    AND A.CARRIER_UNLD_TS >= TO_DATE('2012-01-12 08:03:00', 'YYYY-MM-DD HH24:MI:SS')))
    ORDER BY 6,5,1
    call      count      cpu      elapsed disk      query      current rows
    Parse      1      0.00      0.00      0      0      0      0
    Execute 1      0.00      0.00      0      0      0      0
    Fetch      2      219.55      294.41      14030      13523455 0      14
    total      4      219.55      294.41      14030      13523455 0      14
    Misses in library cache during parse: 0
    Optimizer mode: ALL_ROWS
    Parsing user id: SYS
    Rows           Row Source Operation
    14           SORT UNIQUE (cr=13523455 pr=14030 pw=0 time=294417731 us)
    14           HASH JOIN (cr=13523455 pr=14030 pw=0 time=294416444 us)
    14           TABLE ACCESS BY INDEX ROWID PF2_PROD_ORDER_CARRIER (cr=13523440 pr=14030 pw=0 time=292675360 us)
    98184018      NESTED LOOPS (cr=270067 pr=9028 pw=0 time=294901120 us)
    12128           TABLE ACCESS BY INDEX ROWID WORK_IN_PROCESS (cr=9842 pr=8788 pw=0 time=20479883 us)
    15241      INDEX RANGE SCAN WORK_IN_PROCESS_IX2 (cr=49 pr=48 pw=0 time=54577 us)(object id 65980)
    98171889      INDEX RANGE SCAN PF2_PROD_ORDER_CARRIER_IX3 (cr=260225 pr=240 pw=0 time=808956 us)(object id 65990)
    1736           TABLE ACCESS FULL PF2_PHYSICAL_CARRIER (cr=15 pr=0 pw=0 time=83 us)
    Elapsed times include waiting on following events:
    Event waited on      Times      Max. Wait      Total Waited
    ----------------------------------------      Waited      ----------           ------------
    SQL*Net message to client          3      0.00           0.00
    SQL*Net message from client      3      0.00           0.00
    db file sequential read      14030      0.47           43.56
    call      count      cpu      elapsed     disk     query     current     rows
    Parse      1      0.00      0.00      0      0      0      0
    Execute 1      0.00      0.00      0      0      0      0
    Fetch      0      0.00      0.00      0      0      0      0
    total      2      0.00      0.00      0      0      0      0
    Misses in library cache during parse: 0
    Parsing user id: SYS
    OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
    call      count      cpu      elapsed     disk      query      current      rows
    Parse      2      0.00      0.00      0      0      0      0
    Execute 2      0.00      0.00      0      0      0      0
    Fetch      2      219.55      294.41      14030      13523455 0      14
    total      6      219.55      294.41      14030      13523455 0 14
    Misses in library cache during parse: 0
    Elapsed times include waiting on following events:
    Event waited on      Times      Max. Wait      Total Waited
    ----------------------------------------      Waited      ----------           ------------     
    SQL*Net message to client      3      0.00           0.00
    SQL*Net message from client      3      0.00           0.00
    db file sequential read      14030      0.47           43.56
    OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
    call      count cpu      elapsed      disk      query      current      rows
    Parse      0      0.00      0.00      0      0      0      0
    Execute 0      0.00      0.00      0      0      0      0
    Fetch      0      0.00      0.00      0      0      0      0
    total      0      0.00      0.00      0      0      0      0
    Misses in library cache during parse: 0
    2 user SQL statements in session.
    0 internal SQL statements in session.
    2 SQL statements in session.
    Trace file: ././ppf2_ora_5439924.trc
    Trace file compatibility: 10.01.00
    Sort options: default
    1      session in tracefile.
    2      user SQL statements in trace file.
    0      internal SQL statements in trace file.
    2      SQL statements in trace file.
    2      unique SQL statements in trace file.
    14137      lines in trace file.
    294      elapsed seconds in trace file.
    INFORMATION 5. EXPLAIN PLAN OUTPUT OF DBMS_XPLAN.DISPLAY
    SQL> select * from table(dbms_xplan.display_cursor(null, null, 'ALLSTATS LAST'));
    PLAN_TABLE_OUTPUT
    SQL_ID 1z1cccq5kxt11, child number 0
    SELECT /*+ gather_plan_statistics */ DISTINCT C.MAN_WIP_T_IN_TS, C.RCP_NO, C.WRK_CTR_ID, C.WTR_FREE_TST_FLG,
    A.COMPANY_ID, A.PROD_ORDER, A.PART_NO, A.CARRIER_QTY, B.PHY_CARID, C.WIP_SEQ, A.RCP_NO "CARRIER_RCP"
    FROM PF2_PROD_ORDER_CARRIER A, PF2_PHYSICAL_CARRIER B, WORK_IN_PROCESS C
    WHERE C.UNIT_TYPE_CD = RTRIM('TL7') AND C.UNIT_NM = RTRIM('T41') AND C.WIP_TYPE_CD ='HANDHELD'
    AND C.PHY_CARRIER_SEQ = A.PHY_CARRIER_SEQ AND A.PHY_CARRIER_SEQ = B.PHY_CARRIER_SEQ
    AND ((A.CARRIER_LD_TS <=C.MAN_WIP_T_IN_TS AND A.CARRIER_UNLD_TS >= C.MAN_WIP_T_IN_TS) OR
    ( A.CARRIER_LD_TS <= C.MAN_WIP_T_IN_TS AND A.CARRIER_UNLD_TS IS NULL)) AND ((A.CARRIER_UNLD_TS >= TO_DATE('2012-01-12
    08:03:00', 'YYYY-MM-DD HH24:MI:SS') AND A.CARRIER_UNLD_TS<= TO
    Plan hash value: 850402268
    | Id | Operation                     | Name                    | Starts      |E-Rows      | A-Rows      |A-Time           | Buffers      | Reads      |OMem      |1Mem      | Used-Mem      |
    | 1 | SORT UNIQUE                     |                | 1      | 11      | 14      |00:05:41.48      | 13M     | 6571      | 2048      | 2048      | 2048 (0)          |
    |* 2 | HASH JOIN                     |                | 1      | 11      | 14      |00:05:41.48      | 13M     | 6571      | 807K     | 807K     | 614K (0)          |
    |* 3 | TABLE ACCESS BY INDEX ROWID           | PF2_PROD_ORDER_CARRIER      | 1      | 5      | 14      |00:05:39.89      | 13M     | 6571      |      |      |           |
    | 4 | NESTED LOOPS                |                | 1      | 11      | 98M     |00:04:55.08      | 270K     | 6569      |      |      |           |
    |* 5 | TABLE ACCESS BY INDEX ROWID          | WORK_IN_PROCESS           | 1      | 2      | 12130      |00:00:13.15      | 9845      | 6569      |      |      |           |
    |* 6 | INDEX RANGE SCAN                | WORK_IN_PROCESS_IX2           | 1      | 56      | 15244      |00:00:00.06      | 49      | 45      |      |      |           |
    |* 7 | INDEX RANGE SCAN                | PF2_PROD_ORDER_CARRIER_IX3      | 12130      | 2361      | 98M     |00:00:00.92      | 260K     | 0      |      |      |           |
    | 8 | TABLE ACCESS FULL                | PF2_PHYSICAL_CARRIER           | 1      | 1736      | 1736      |00:00:00.01      | 15      | 0      |      |      |           |
    Predicate Information (identified by operation id):
    2 - access("A"."PHY_CARRIER_SEQ"="B"."PHY_CARRIER_SEQ")
    3 - filter(((("A"."CARRIER_UNLD_TS" IS NULL AND "A"."CARRIER_LD_TS"<=TO_DATE(' 2012-01-12 08:03:00', 'syyyy-mm-dd hh24:mi:ss')) OR
    ("A"."CARRIER_UNLD_TS">=TO_DATE(' 2012-01-12 08:03:00', 'syyyy-mm-dd hh24:mi:ss') AND "A"."CARRIER_LD_TS"<=TO_DATE(' 2012-01-12 08:03:00',
    'syyyy-mm-dd hh24:mi:ss')) OR ("A"."CARRIER_UNLD_TS">=TO_DATE(' 2012-01-12 08:03:00', 'syyyy-mm-dd hh24:mi:ss') AND
    "A"."CARRIER_UNLD_TS"<=TO_DATE(' 2012-01-12 10:03:00', 'syyyy-mm-dd hh24:mi:ss')) OR "A"."CARRIER_LD_TS"=TO_DATE(' 2012-01-12 08:03:00',
    'syyyy-mm-dd hh24:mi:ss')) AND (("A"."CARRIER_LD_TS"<="C"."MAN_WIP_T_IN_TS" AND "A"."CARRIER_UNLD_TS">="C"."MAN_WIP_T_IN_TS") OR
    ("A"."CARRIER_UNLD_TS" IS NULL AND "A"."CARRIER_LD_TS"<="C"."MAN_WIP_T_IN_TS"))))
    5 - filter(("C"."WIP_TYPE_CD"='HANDHELD' AND "C"."PHY_CARRIER_SEQ" IS NOT NULL))
    6 - access("C"."UNIT_TYPE_CD"='TL7' AND "C"."UNIT_NM"='T41')
    7 - access("C"."PHY_CARRIER_SEQ"="A"."PHY_CARRIER_SEQ")
    filter("A"."PHY_CARRIER_SEQ" IS NOT NULL)
    41 rows selected.
    Regards
    Rahul

    Rahul, post your question on the SQL and PL/SQL forum PL/SQL. This forum is for Oracle Berkeley DB not Oracle Database.
    Thanks,
    Andrei

  • This SQL statement always in Top Activity, with PX Deq Credit: send blkd

    Hi gurus,
    The following SQL statement is always among the Top Activity. I can see the details in Enerprise manager that it suffers from PX Deq Credit: send blkd
    This is the statement:
    SELECT S.Product, S.WH_CODE, S.RACK, S.BATCH, S.EXP_DATE, FLOOR(Qty_Beg) QtyBeg_B,
            ROUND(f_convert_qty(S.PRODUCT, Qty_Beg-FLOOR(Qty_Beg), P.UOM_K ), 0) QtyBeg_K,
            FLOOR(Qty_In) QtyIn_B, ROUND(f_convert_qty(S.PRODUCT, Qty_In-FLOOR(Qty_In), P.UOM_K), 0) QtyIn_K,
            FLOOR(Qty_Out) QtyOut_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Out-FLOOR(Qty_Out), P.UOM_K ), 0) QtyOut_K,
            FLOOR(Qty_Adj) QtyAdj_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Adj-FLOOR(Qty_Adj), P.UOM_K ), 0) QtyAdj_K,
            FLOOR(Qty_End) QtyEnd_B, ROUND(f_convert_qty(S.PRODUCT, Qty_End-FLOOR(Qty_End), P.UOM_K ), 0) QtyEnd_K,
            S.LOC_CODE
            FROM V_STOCK_DETAIL S
            JOIN PRODUCTS P ON P.PRODUCT = S.PRODUCT
            WHERE S.Product = :pProduct AND S.WH_CODE = :pWhCode AND S.LOC_CODE = :pLocCode;The statement is invoked by our front end (web based app) for a browse table displayed on a web page. The result can be 10 to 8000. It is used to display the current stock availability for a particular product in a particular warehouse. The stock availability it self is kept in a View : V_Stock_Detail
    These are the parameters relevant to the optimizer:
    SQL> show parameter user_dump_dest
    user_dump_dest                       string   /u01/app/oracle/admin/ITTDB/udump
    SQL> show parameter optimizer
    _optimizer_cost_based_transformation  string   OFF
    optimizer_dynamic_sampling           integer  2
    optimizer_features_enable            string   10.2.0.3
    optimizer_index_caching              integer  0
    optimizer_index_cost_adj             integer  100
    optimizer_mode                       string   ALL_ROWS
    optimizer_secure_view_merging        boolean  TRUE
    SQL> show parameter db_file_multi
    db_file_multiblock_read_count        integer  16
    SQL> show parameter db_block_size column sname format a20 column pname format a20
    db_block_size                        integer  8192Here is the output of EXPLAIN PLAN:
    SQL> explain plan for
    SELECT S.Product, S.WH_CODE, S.RACK, S.BATCH, S.EXP_DATE, FLOOR(Qty_Beg) QtyBeg_B,
        ROUND(f_convert_qty(S.PRODUCT, Qty_Beg-FLOOR(Qty_Beg), P.UOM_K ), 0) QtyBeg_K,
        FLOOR(Qty_In) QtyIn_B, ROUND(f_convert_qty(S.PRODUCT, Qty_In-FLOOR(Qty_In), P.UOM_K), 0) QtyIn_K,
        FLOOR(Qty_Out) QtyOut_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Out-FLOOR(Qty_Out), P.UOM_K ), 0) QtyOut_K,
        FLOOR(Qty_Adj) QtyAdj_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Adj-FLOOR(Qty_Adj), P.UOM_K ), 0) QtyAdj_K,
        FLOOR(Qty_End) QtyEnd_B, ROUND(f_convert_qty(S.PRODUCT, Qty_End-FLOOR(Qty_End), P.UOM_K ), 0) QtyEnd_K,
        S.LOC_CODE
        FROM V_STOCK_DETAIL S
        JOIN PRODUCTS P ON P.PRODUCT = S.PRODUCT
        WHERE S.Product = :pProduct AND S.WH_CODE = :pWhCode AND S.LOC_CODE = :pLocCode
    Explain complete.
    Elapsed: 00:00:00:31
    SQL> select * from table(dbms_xplan.display)
    PLAN_TABLE_OUTPUT
    Plan hash value: 3252950027
    | Id  | Operation                               | Name                | Rows  | Bytes | Cost (%CPU)| Time     |    TQ  |IN-OUT| PQ
    Distrib |
    |   0 | SELECT STATEMENT                        |                     |     1 |   169 |     6  (17)| 00:00:01 |        |      |
             |
    |   1 |  PX COORDINATOR                         |                     |       |       |            |          |        |      |
             |
    |   2 |   PX SEND QC (RANDOM)                   | :TQ10003            |     1 |   169 |     6  (17)| 00:00:01 |  Q1,03 | P->S | QC
    (RAND)  |
    |   3 |    HASH GROUP BY                        |                     |     1 |   169 |     6  (17)| 00:00:01 |  Q1,03 | PCWP |
             |
    |   4 |     PX RECEIVE                          |                     |     1 |   169 |     6  (17)| 00:00:01 |  Q1,03 | PCWP |
             |
    |   5 |      PX SEND HASH                       | :TQ10002            |     1 |   169 |     6  (17)| 00:00:01 |  Q1,02 | P->P | HA
    SH       |
    |   6 |       HASH GROUP BY                     |                     |     1 |   169 |     6  (17)| 00:00:01 |  Q1,02 | PCWP |
             |
    |   7 |        NESTED LOOPS OUTER               |                     |     1 |   169 |     5   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    |   8 |         MERGE JOIN CARTESIAN            |                     |     1 |   119 |     4   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    |   9 |          SORT JOIN                      |                     |       |       |            |          |  Q1,02 | PCWP |
             |
    |  10 |           NESTED LOOPS                  |                     |     1 |    49 |     4   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    |  11 |            BUFFER SORT                  |                     |       |       |            |          |  Q1,02 | PCWC |
             |
    |  12 |             PX RECEIVE                  |                     |       |       |            |          |  Q1,02 | PCWP |
             |
    |  13 |              PX SEND BROADCAST          | :TQ10000            |       |       |            |          |        | S->P | BR
    OADCAST  |
    |* 14 |               INDEX RANGE SCAN          | PRODUCTS_IDX2       |     1 |    25 |     2   (0)| 00:00:01 |        |      |
             |
    |  15 |            PX BLOCK ITERATOR            |                     |     1 |    24 |     2   (0)| 00:00:01 |  Q1,02 | PCWC |
             |
    |* 16 |             MAT_VIEW ACCESS FULL        | MV_CONVERT_UOM      |     1 |    24 |     2   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    |  17 |          BUFFER SORT                    |                     |     1 |    70 |     2   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    |  18 |           BUFFER SORT                   |                     |       |       |            |          |  Q1,02 | PCWC |
             |
    |  19 |            PX RECEIVE                   |                     |     1 |    70 |     4   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    |  20 |             PX SEND BROADCAST           | :TQ10001            |     1 |    70 |     4   (0)| 00:00:01 |        | S->P | BR
    OADCAST  |
    |* 21 |              TABLE ACCESS BY INDEX ROWID| STOCK               |     1 |    70 |     4   (0)| 00:00:01 |        |      |
             |
    |* 22 |               INDEX RANGE SCAN          | STOCK_PK            |     1 |       |     2   (0)| 00:00:01 |        |      |
             |
    |* 23 |         TABLE ACCESS BY INDEX ROWID     | MV_TRANS_STOCK      |     1 |    50 |     3   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    |* 24 |          INDEX RANGE SCAN               | MV_TRANS_STOCK_IDX1 |     1 |       |     2   (0)| 00:00:01 |  Q1,02 | PCWP |
             |
    Predicate Information (identified by operation id):
      14 - access("P"."PRODUCT"=:PPRODUCT)
      16 - filter("CON"."PRODUCT"=:PPRODUCT)
      21 - filter("STOCK"."LOC_CODE"=:PLOCCODE)
      22 - access("STOCK"."PRODUCT"=:PPRODUCT AND "STOCK"."WH_CODE"=:PWHCODE)
      23 - filter("STS"(+)='N')
      24 - access("PRODUCT"(+)=:PPRODUCT AND "WH_CODE"(+)=:PWHCODE AND "LOC_CODE"(+)=:PLOCCODE AND "RACK"(+)="STOCK"."RACK" AND
                  "BATCH"(+)="STOCK"."BATCH" AND "EXP_DATE"(+)="STOCK"."EXP_DATE")
    42 rows selected.
    Elapsed: 00:00:00:06Here is the output of SQL*Plus AUTOTRACE including the TIMING information:
    SQL> SELECT S.Product, S.WH_CODE, S.RACK, S.BATCH, S.EXP_DATE, FLOOR(Qty_Beg) QtyBeg_B,
        ROUND(f_convert_qty(S.PRODUCT, Qty_Beg-FLOOR(Qty_Beg), P.UOM_K ), 0) QtyBeg_K,
        FLOOR(Qty_In) QtyIn_B, ROUND(f_convert_qty(S.PRODUCT, Qty_In-FLOOR(Qty_In), P.UOM_K), 0) QtyIn_K,
        FLOOR(Qty_Out) QtyOut_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Out-FLOOR(Qty_Out), P.UOM_K ), 0) QtyOut_K,
        FLOOR(Qty_Adj) QtyAdj_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Adj-FLOOR(Qty_Adj), P.UOM_K ), 0) QtyAdj_K,
        FLOOR(Qty_End) QtyEnd_B, ROUND(f_convert_qty(S.PRODUCT, Qty_End-FLOOR(Qty_End), P.UOM_K ), 0) QtyEnd_K,
        S.LOC_CODE
        FROM V_STOCK_DETAIL S
        JOIN PRODUCTS P ON P.PRODUCT = S.PRODUCT
        WHERE S.Product = :pProduct AND S.WH_CODE = :pWhCode AND S.LOC_CODE = :pLocCode
    Execution Plan
       0      SELECT STATEMENT Optimizer Mode=ALL_ROWS   1   169   6
       1    0   PX COORDINATOR
       2    1     PX SEND QC (RANDOM) SYS.:TQ10003 1   169   6   :Q1003  P->S   QC (RANDOM)
       3    2       HASH GROUP BY   1   169   6   :Q1003  PCWP
       4    3         PX RECEIVE   1   169   6   :Q1003  PCWP
       5    4           PX SEND HASH SYS.:TQ10002 1   169   6   :Q1002  P->P   HASH
       6    5             HASH GROUP BY   1   169   6   :Q1002  PCWP
       7    6               NESTED LOOPS OUTER   1   169   5   :Q1002  PCWP
       8    7                 MERGE JOIN CARTESIAN   1   119   4   :Q1002  PCWP
       9    8                   SORT JOIN          :Q1002  PCWP
      10    9                     NESTED LOOPS   1   49   4   :Q1002  PCWP
      11   10                       BUFFER SORT          :Q1002  PCWC
      12   11                         PX RECEIVE          :Q1002  PCWP
      13   12                           PX SEND BROADCAST SYS.:TQ10000           S->P   BROADCAST
      14   13                             INDEX RANGE SCAN ITT_NEW.PRODUCTS_IDX2 1   25   2
      15   10                       PX BLOCK ITERATOR   1   24   2   :Q1002  PCWC
      16   15                         MAT_VIEW ACCESS FULL ITT_NEW.MV_CONVERT_UOM 1   24   2   :Q1002  PCWP
      17    8                   BUFFER SORT   1   70   2   :Q1002  PCWP
      18   17                     BUFFER SORT          :Q1002  PCWC
      19   18                       PX RECEIVE   1   70   4   :Q1002  PCWP
      20   19                         PX SEND BROADCAST SYS.:TQ10001 1   70   4      S->P   BROADCAST
      21   20                           TABLE ACCESS BY INDEX ROWID ITT_NEW.STOCK 1   70   4
      22   21                             INDEX RANGE SCAN ITT_NEW.STOCK_PK 1     2
      23    7                 TABLE ACCESS BY INDEX ROWID ITT_NEW.MV_TRANS_STOCK 1   50   3   :Q1002  PCWP
      24   23                   INDEX RANGE SCAN ITT_NEW.MV_TRANS_STOCK_IDX1 1     2   :Q1002  PCWP
    Statistics
            570  recursive calls
              0  physical write total IO requests
              0  physical write total multi block requests
              0  physical write total bytes
              0  physical writes direct temporary tablespace
              0  java session heap live size max
              0  java session heap object count
              0  java session heap object count max
              0  java session heap collected count
              0  java session heap collected bytes
             83  rows processed
    Elapsed: 00:00:03:24
    SQL> disconnect
    Commit complete
    Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bit Production
    With the Partitioning, OLAP and Data Mining optionsThe TKPROF output for this statement looks like the following:
    TKPROF: Release 10.2.0.3.0 - Production on Thu Apr 23 12:39:29 2009
    Copyright (c) 1982, 2005, Oracle.  All rights reserved.
    Trace file: ittdb_ora_9566_mytrace1.trc
    Sort options: default
    count    = number of times OCI procedure was executed
    cpu      = cpu time in seconds executing
    elapsed  = elapsed time in seconds executing
    disk     = number of physical reads of buffers from disk
    query    = number of buffers gotten for consistent read
    current  = number of buffers gotten in current mode (usually for update)
    rows     = number of rows processed by the fetch or execute call
    SELECT S.Product, S.WH_CODE, S.RACK, S.BATCH, S.EXP_DATE, FLOOR(Qty_Beg) QtyBeg_B,
        ROUND(f_convert_qty(S.PRODUCT, Qty_Beg-FLOOR(Qty_Beg), P.UOM_K ), 0) QtyBeg_K,
        FLOOR(Qty_In) QtyIn_B, ROUND(f_convert_qty(S.PRODUCT, Qty_In-FLOOR(Qty_In), P.UOM_K), 0) QtyIn_K,
        FLOOR(Qty_Out) QtyOut_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Out-FLOOR(Qty_Out), P.UOM_K ), 0) QtyOut_K,
        FLOOR(Qty_Adj) QtyAdj_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Adj-FLOOR(Qty_Adj), P.UOM_K ), 0) QtyAdj_K,
        FLOOR(Qty_End) QtyEnd_B, ROUND(f_convert_qty(S.PRODUCT, Qty_End-FLOOR(Qty_End), P.UOM_K ), 0) QtyEnd_K,
        S.LOC_CODE
        FROM V_STOCK_DETAIL S
        JOIN PRODUCTS P ON P.PRODUCT = S.PRODUCT
        WHERE S.Product = :pProduct AND S.WH_CODE = :pWhCode AND S.LOC_CODE = :pLocCode
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        1      0.00       0.00          0          0          0           0
    Execute      1      0.04       0.12          0         10          4           0
    Fetch       43      0.05       2.02          0         73          0          83
    total       45      0.10       2.15          0         83          4          83
    Misses in library cache during parse: 1
    Misses in library cache during execute: 1
    Optimizer mode: ALL_ROWS
    Parsing user id: 164 
    Rows     Row Source Operation
         83  PX COORDINATOR  (cr=83 pr=0 pw=0 time=2086576 us)
          0   PX SEND QC (RANDOM) :TQ10003 (cr=0 pr=0 pw=0 time=0 us)
          0    HASH GROUP BY (cr=0 pr=0 pw=0 time=0 us)
          0     PX RECEIVE  (cr=0 pr=0 pw=0 time=0 us)
          0      PX SEND HASH :TQ10002 (cr=0 pr=0 pw=0 time=0 us)
          0       HASH GROUP BY (cr=0 pr=0 pw=0 time=0 us)
          0        NESTED LOOPS OUTER (cr=0 pr=0 pw=0 time=0 us)
          0         MERGE JOIN CARTESIAN (cr=0 pr=0 pw=0 time=0 us)
          0          SORT JOIN (cr=0 pr=0 pw=0 time=0 us)
          0           NESTED LOOPS  (cr=0 pr=0 pw=0 time=0 us)
          0            BUFFER SORT (cr=0 pr=0 pw=0 time=0 us)
          0             PX RECEIVE  (cr=0 pr=0 pw=0 time=0 us)
          0              PX SEND BROADCAST :TQ10000 (cr=0 pr=0 pw=0 time=0 us)
          1               INDEX RANGE SCAN PRODUCTS_IDX2 (cr=2 pr=0 pw=0 time=62 us)(object id 135097)
          0            PX BLOCK ITERATOR (cr=0 pr=0 pw=0 time=0 us)
          0             MAT_VIEW ACCESS FULL MV_CONVERT_UOM (cr=0 pr=0 pw=0 time=0 us)
          0          BUFFER SORT (cr=0 pr=0 pw=0 time=0 us)
          0           BUFFER SORT (cr=0 pr=0 pw=0 time=0 us)
          0            PX RECEIVE  (cr=0 pr=0 pw=0 time=0 us)
          0             PX SEND BROADCAST :TQ10001 (cr=0 pr=0 pw=0 time=0 us)
         83              TABLE ACCESS BY INDEX ROWID STOCK (cr=78 pr=0 pw=0 time=1635 us)
         83               INDEX RANGE SCAN STOCK_PK (cr=4 pr=0 pw=0 time=458 us)(object id 135252)
          0         TABLE ACCESS BY INDEX ROWID MV_TRANS_STOCK (cr=0 pr=0 pw=0 time=0 us)
          0          INDEX RANGE SCAN MV_TRANS_STOCK_IDX1 (cr=0 pr=0 pw=0 time=0 us)(object id 143537)
    Elapsed times include waiting on following events:
      Event waited on                             Times   Max. Wait  Total Waited
      ----------------------------------------   Waited  ----------  ------------
      PX Deq: Join ACK                               17        0.00          0.00
      PX qref latch                                   2        0.00          0.00
      PX Deq Credit: send blkd                       72        1.95          2.00
      PX Deq: Parse Reply                            26        0.01          0.01
      SQL*Net message to client                      43        0.00          0.00
      PX Deq: Execute Reply                          19        0.00          0.01
      SQL*Net message from client                    43        0.00          0.04
      PX Deq: Signal ACK                             12        0.00          0.00
      enq: PS - contention                            1        0.00          0.00
    ********************************************************************************The DBMS_XPLAN.DISPLAY_CURSOR output:
    SQL> select * from table(dbms_xplan.display_cursor(null, null, 'ALLSTATS LAST'))
    PLAN_TABLE_OUTPUT
    SQL_ID  402b8st7vt6ku, child number 2
    SELECT /*+ gather_plan_statistics */          S.Product, S.WH_CODE, S.RACK, S.BATCH, S.EXP_DATE, FLOOR(Qty_Beg) QtyBeg_B,
    ROUND(f_convert_qty(S.PRODUCT, Qty_Beg-FLOOR(Qty_Beg), P.UOM_K ), 0) QtyBeg_K,      FLOOR(Qty_In) QtyIn_B, ROUND(f_convert_qty(S.P
    RODUCT,
    Qty_In-FLOOR(Qty_In), P.UOM_K), 0) QtyIn_K,      FLOOR(Qty_Out) QtyOut_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Out-FLOOR(Qty_Out), P
    .UOM_K ),
    0) QtyOut_K,      FLOOR(Qty_Adj) QtyAdj_B, ROUND(f_convert_qty(S.PRODUCT, Qty_Adj-FLOOR(Qty_Adj), P.UOM_K ), 0) QtyAdj_K,
    FLOOR(Qty_End) QtyEnd_B, ROUND(f_convert_qty(S.PRODUCT, Qty_End-FLOOR(Qty_End), P.UOM_K ), 0) QtyEnd_K,      S.LOC_CODE      FROM
    V_STOCK_DETAIL S      JOIN PRODUCTS P ON P.PRODUCT = S.PRODUCT      WHERE S.Product = :pProduct AND S.WH_CODE = :pWhCode AND S.LOC
    _CODE =
    :pLocCode
    Plan hash value: 3252950027
    | Id  | Operation                               | Name                | Starts | E-Rows | A-Rows |   A-Time   | Buffers |  OMem |
    1Mem | Used-Mem |
    |   1 |  PX COORDINATOR                         |                     |      1 |        |     83 |00:00:02.25 |      83 |       |
          |          |
    |   2 |   PX SEND QC (RANDOM)                   | :TQ10003            |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |   3 |    HASH GROUP BY                        |                     |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |   4 |     PX RECEIVE                          |                     |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |   5 |      PX SEND HASH                       | :TQ10002            |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |   6 |       HASH GROUP BY                     |                     |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |   7 |        NESTED LOOPS OUTER               |                     |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |   8 |         MERGE JOIN CARTESIAN            |                     |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |   9 |          SORT JOIN                      |                     |      0 |        |      0 |00:00:00.01 |       0 | 73728 |
    73728 |          |
    |  10 |           NESTED LOOPS                  |                     |      0 |      1 |      0 |00:00:00.01 |       0 |       |
          |          |
    |  11 |            BUFFER SORT                  |                     |      0 |        |      0 |00:00:00.01 |       0 | 73728 |
    73728 |          |
    |  12 |             PX RECEIVE                  |                     |      0 |        |      0 |00:00:00.01 |       0 |       |
          |          |
    |  13 |              PX SEND BROADCAST          | :TQ10000            |      0 |        |      0 |00:00:00.01 |       0 |       |
          |          |
    |* 14 |               INDEX RANGE SCAN          | PRODUCTS_IDX2       |      1 |      1 |      1 |00:00:00.01 |       2 |       |
          |          |
    |  15 |            PX BLOCK ITERATOR            |                     |      0 |      1 |      0 |00:00:00.01 |       0 |       |
          |          |
    |* 16 |             MAT_VIEW ACCESS FULL        | MV_CONVERT_UOM      |      0 |      1 |      0 |00:00:00.01 |       0 |       |
          |          |
    |  17 |          BUFFER SORT                    |                     |      0 |     21 |      0 |00:00:00.01 |       0 | 73728 |
    73728 |          |
    |  18 |           BUFFER SORT                   |                     |      0 |        |      0 |00:00:00.01 |       0 | 73728 |
    73728 |          |
    |  19 |            PX RECEIVE                   |                     |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |  20 |             PX SEND BROADCAST           | :TQ10001            |      0 |     21 |      0 |00:00:00.01 |       0 |       |
          |          |
    |* 21 |              TABLE ACCESS BY INDEX ROWID| STOCK               |      1 |     21 |     83 |00:00:00.01 |      78 |       |
          |          |
    |* 22 |               INDEX RANGE SCAN          | STOCK_PK            |      1 |     91 |     83 |00:00:00.01 |       4 |       |
          |          |
    |* 23 |         TABLE ACCESS BY INDEX ROWID     | MV_TRANS_STOCK      |      0 |      1 |      0 |00:00:00.01 |       0 |       |
          |          |
    |* 24 |          INDEX RANGE SCAN               | MV_TRANS_STOCK_IDX1 |      0 |      1 |      0 |00:00:00.01 |       0 |       |
          |          |
    Predicate Information (identified by operation id):
      14 - access("P"."PRODUCT"=:PPRODUCT)
      16 - access(:Z>=:Z AND :Z<=:Z)
           filter("CON"."PRODUCT"=:PPRODUCT)
      21 - filter("STOCK"."LOC_CODE"=:PLOCCODE)
      22 - access("STOCK"."PRODUCT"=:PPRODUCT AND "STOCK"."WH_CODE"=:PWHCODE)
      23 - filter("STS"='N')
      24 - access("PRODUCT"=:PPRODUCT AND "WH_CODE"=:PWHCODE AND "LOC_CODE"=:PLOCCODE AND "RACK"="STOCK"."RACK" AND "BATCH"="STOCK"."B
    ATCH" AND
                  "EXP_DATE"="STOCK"."EXP_DATE")
    53 rows selected.
    Elapsed: 00:00:00:12I'm looking forward for suggestions how to improve the performance of this statement.
    Thank you very much,
    xtanto

    xtanto wrote:
    Hi sir,
    How to prevent the query from doing parallel query ?
    Because as you see actually I am not issuing any Parallel hints in the query.
    Thank you,
    xtantoKristanto,
    there are a couple of points to consider:
    1. Your SQL*Plus version seems to be outdated. Please use a SQL*Plus version that corresponds to your database version. E.g. the AUTOTRACE output is odd.
    2. I would suggest to repeat your exercise using serial execution (the plan, the autotrace, the tracing). You can disable parallel queries by issuing this in your session:
    ALTER SESSION DISABLE PARALLEL QUERY;
    This way the output of the tools is much more meaningful, however you might get a different execution plan, therefore the results might not be representative for your parallel execution.
    3. The function calls might pose a problem. If they are, one possible damage limitation has been provided by hoek. Even better would be then to replace the PL/SQL function with equivalent plain SQL. However since you say that it generates not too many rows it might not harm here too much. You can check the impact of the functions by running a similar query but omitting the function calls.
    4. The parallel execution plan contains a MERGE JOIN CARTESIAN operation which could be an issue if the estimates of the optimizer are incorrect. If the serial execution still uses this operation the TKPROF and DBMS_XPLAN.DISPLAY_CURSOR output will reveal whether this is a problem or not.
    5. The execution of the statement seems to take on 2-3 seconds in your tests. Is this in the right ballpark? If yes, why should this statement then be problematic? How often does it get executed?
    6. The statement uses bind variables, so you might have executions that use different execution plans depending on the bind values passed when the statement got optimized. You can use DBMS_XPLAN.DISPLAY_CURSOR using NULL as "child_number" parameter or DBMS_XPLAN.DISPLAY_AWR (if you have a AWR license) to check if you have multiple execution plans for the statement. Please note that older versions might have already been aged out of the shared pool, so the AWR repository might be a more reliable source (but only if the statement has been sampled).
    7. You have disabled cost based transformations: "_optimizer_cost_based_transformation" = OFF. Why?
    Regards,
    Randolf
    Oracle related stuff blog:
    http://oracle-randolf.blogspot.com/
    SQLTools++ for Oracle (Open source Oracle GUI for Windows):
    http://www.sqltools-plusplus.org:7676/
    http://sourceforge.net/projects/sqlt-pp/

  • How to get the real SQL statement from a preparedstatement?

    Hi,
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    Thanks in advance.

    Thanks, changhsu. I tried the tracing technique. But it only prints out the original SQL statement sent to the preparedStatement. The following is part of the log file:
    ======================================================================
    --------NetDirect JSQLConnect Version:2.2708--------
    2002-04-10 14:23:54.818 (1) Connection attempt number 1 Connection ID:1 for host:perseus
    2002-04-10 14:23:55.429 (1) JSQLConnect(2.2708) Trial license - expires on:Thu Apr 25 17:47:32 CDT 2002, unlimited connections
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    2002-04-10 14:23:58.193 (3) Connection attempt number 2 Connection ID:3 for host:perseus database:epm20 SQL6.5:false
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    2002-04-10 14:24:00.356 (4) Connection allocated from pool ID:4
    2002-04-10 14:24:01.168 (4) [Not Loged In@localhost, IO:88cb2, Dbc:1347]] PreparedStatement::prepare stmt:SELECT PASSWD FROM RESOURCE_INFO WHERE USER_ID=? AND DELETE_FLG IS NULL
    2002-04-10 14:24:01.448 (4) [Not Loged In@localhost, IO:88cb2, Dbc:1347]] RPC:sp_prepare
    2002-04-10 14:24:01.488 (4) [Not Loged In@localhost, IO:88cb2, Dbc:1347]] RPC:sp_execute
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    I did not try to trace in SQL Server 7. I will have to find out how to do that first.
    Thanks again.

  • Executing multiple SQL statements fails using ODBC

    Executing multiple SQL statements will fail with error 'ORA-00911 invalid character' when connecting to an Oracle database using ODBC driver version 8.01.07.00.
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    Can you take the begin ... end block and run it using SQL*Plus?
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    Justin

  • Info abt rolled back sql statements

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    try logminer.

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    What is the data volume for this table?
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    SET    f = SUBSTR(f,
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  • How do I use SQL statements to perform calculations with form fields????

    Please help!!! I don't know how to use a SQL statement within my APEX form......
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    This is an example of an user providing the values:
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    28-MAR-2008 00:00 200 Week 3 of 4
    04-APR-2008 00:00 200 Week 4 of 4
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    with criteria as (select to_date('03/14/08', 'mm/dd/rr') as start_date,
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    'Week' as period,
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    union all select 'Month', 0, 1 from dual
    union all select 'ByMonth', 0, 2 from dual
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    period
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  • HOW TO: Post a SQL statement tuning request - template posting

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    \And it will look like this:
       This preserves formatting
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    2. The version of your database with 4-digits (e.g. 10.2.0.4)
    3. Optimizer related parameters
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    5. The EXPLAIN PLAN output
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    7. If you're on 10g or later, the DBMS_XPLAN.DISPLAY_CURSOR output
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    This is the statement:
    select
    from
             t_demo
    where
             type = 'VIEW'
    order by
             id;It should return data from a table in a specific order.
    The version of the database is 11.1.0.7.
    These are the parameters relevant to the optimizer:
    SQL>
    SQL> show parameter optimizer
    NAME                                 TYPE        VALUE
    optimizer_capture_sql_plan_baselines boolean     FALSE
    optimizer_dynamic_sampling           integer     2
    optimizer_features_enable            string      11.1.0.7
    optimizer_index_caching              integer     0
    optimizer_index_cost_adj             integer     100
    optimizer_mode                       string      ALL_ROWS
    optimizer_secure_view_merging        boolean     TRUE
    optimizer_use_invisible_indexes      boolean     FALSE
    optimizer_use_pending_statistics     boolean     FALSE
    optimizer_use_sql_plan_baselines     boolean     TRUE
    SQL>
    SQL> show parameter db_file_multi
    NAME                                 TYPE        VALUE
    db_file_multiblock_read_count        integer     8
    SQL>
    SQL> show parameter db_block_size
    NAME                                 TYPE        VALUE
    db_block_size                        integer     8192
    SQL>
    SQL> show parameter cursor_sharing
    NAME                                 TYPE        VALUE
    cursor_sharing                       string      EXACT
    SQL>
    SQL> column sname format a20
    SQL> column pname format a20
    SQL> column pval2 format a20
    SQL>
    SQL> select
      2             sname
      3           , pname
      4           , pval1
      5           , pval2
      6  from
      7           sys.aux_stats$;
    SNAME                PNAME                     PVAL1 PVAL2
    SYSSTATS_INFO        STATUS                          COMPLETED
    SYSSTATS_INFO        DSTART                          01-30-2009 16:25
    SYSSTATS_INFO        DSTOP                           01-30-2009 16:25
    SYSSTATS_INFO        FLAGS                         0
    SYSSTATS_MAIN        CPUSPEEDNW              494,397
    SYSSTATS_MAIN        IOSEEKTIM                    10
    SYSSTATS_MAIN        IOTFRSPEED                 4096
    SYSSTATS_MAIN        SREADTIM
    SYSSTATS_MAIN        MREADTIM
    SYSSTATS_MAIN        CPUSPEED
    SYSSTATS_MAIN        MBRC
    SYSSTATS_MAIN        MAXTHR
    SYSSTATS_MAIN        SLAVETHR
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    SQL> explain plan for
      2  -- put your statement here
      3  select
      4             *
      5  from
      6             t_demo
      7  where
      8             type = 'VIEW'
      9  order by
    10             id;
    Explained.
    Elapsed: 00:00:00.01
    SQL>
    SQL> select * from table(dbms_xplan.display);
    PLAN_TABLE_OUTPUT
    Plan hash value: 1390505571
    | Id  | Operation                   | Name     | Rows  | Bytes | Cost (%CPU)| Time     |
    |   0 | SELECT STATEMENT            |          |     1 |    60 |     0   (0)| 00:00:01 |
    |   1 |  TABLE ACCESS BY INDEX ROWID| T_DEMO   |     1 |    60 |     0   (0)| 00:00:01 |
    |*  2 |   INDEX RANGE SCAN          | IDX_DEMO |     1 |       |     0   (0)| 00:00:01 |
    Predicate Information (identified by operation id):
       2 - access("TYPE"='VIEW')
    14 rows selected.Here is the output of SQL*Plus AUTOTRACE including the TIMING information:
    SQL> rem Set the ARRAYSIZE according to your application
    SQL> set autotrace traceonly arraysize 100
    SQL> select
      2             *
      3  from
      4             t_demo
      5  where
      6             type = 'VIEW'
      7  order by
      8             id;
    149938 rows selected.
    Elapsed: 00:00:02.21
    Execution Plan
    Plan hash value: 1390505571
    | Id  | Operation                   | Name     | Rows  | Bytes | Cost (%CPU)| Time     |
    |   0 | SELECT STATEMENT            |          |     1 |    60 |     0   (0)| 00:00:01 |
    |   1 |  TABLE ACCESS BY INDEX ROWID| T_DEMO   |     1 |    60 |     0   (0)| 00:00:01 |
    |*  2 |   INDEX RANGE SCAN          | IDX_DEMO |     1 |       |     0   (0)| 00:00:01 |
    Predicate Information (identified by operation id):
       2 - access("TYPE"='VIEW')
    Statistics
              0  recursive calls
              0  db block gets
         149101  consistent gets
            800  physical reads
            196  redo size
        1077830  bytes sent via SQL*Net to client
          16905  bytes received via SQL*Net from client
           1501  SQL*Net roundtrips to/from client
              0  sorts (memory)
              0  sorts (disk)
         149938  rows processed
    SQL>
    SQL> disconnect
    Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing optionsThe TKPROF output for this statement looks like the following:
    TKPROF: Release 11.1.0.7.0 - Production on Mo Feb 23 10:23:08 2009
    Copyright (c) 1982, 2007, Oracle.  All rights reserved.
    Trace file: orcl11_ora_3376_mytrace1.trc
    Sort options: default
    count    = number of times OCI procedure was executed
    cpu      = cpu time in seconds executing
    elapsed  = elapsed time in seconds executing
    disk     = number of physical reads of buffers from disk
    query    = number of buffers gotten for consistent read
    current  = number of buffers gotten in current mode (usually for update)
    rows     = number of rows processed by the fetch or execute call
    select
    from
             t_demo
    where
             type = 'VIEW'
    order by
             id
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        1      0.00       0.00          0          0          0           0
    Execute      1      0.00       0.00          0          0          0           0
    Fetch     1501      0.53       1.36        800     149101          0      149938
    total     1503      0.53       1.36        800     149101          0      149938
    Misses in library cache during parse: 0
    Optimizer mode: ALL_ROWS
    Parsing user id: 88 
    Rows     Row Source Operation
    149938  TABLE ACCESS BY INDEX ROWID T_DEMO (cr=149101 pr=800 pw=0 time=60042 us cost=0 size=60 card=1)
    149938   INDEX RANGE SCAN IDX_DEMO (cr=1881 pr=1 pw=0 time=0 us cost=0 size=0 card=1)(object id 74895)
    Elapsed times include waiting on following events:
      Event waited on                             Times   Max. Wait  Total Waited
      ----------------------------------------   Waited  ----------  ------------
      SQL*Net message to client                    1501        0.00          0.00
      db file sequential read                       800        0.05          0.80
      SQL*Net message from client                  1501        0.00          0.69
    ********************************************************************************The DBMS_XPLAN.DISPLAY_CURSOR output:
    SQL> -- put your statement here
    SQL> -- use the GATHER_PLAN_STATISTICS hint
    SQL> -- if you're not using STATISTICS_LEVEL = ALL
    SQL> select /*+ gather_plan_statistics */
      2  *
      3  from
      4  t_demo
      5  where
      6  type = 'VIEW'
      7  order by
      8  id;
    149938 rows selected.
    Elapsed: 00:00:02.21
    SQL>
    SQL> select * from table(dbms_xplan.display_cursor(null, null, 'ALLSTATS LAST'));
    PLAN_TABLE_OUTPUT
    SQL_ID  d4k5acu783vu8, child number 0
    select   /*+ gather_plan_statistics */          * from          t_demo
    where          type = 'VIEW' order by          id
    Plan hash value: 1390505571
    | Id  | Operation                   | Name     | Starts | E-Rows | A-Rows |   A-Time   | Buffers | Reads  |
    |   0 | SELECT STATEMENT            |          |      1 |        |    149K|00:00:00.02 |     149K|   1183 |
    |   1 |  TABLE ACCESS BY INDEX ROWID| T_DEMO   |      1 |      1 |    149K|00:00:00.02 |     149K|   1183 |
    |*  2 |   INDEX RANGE SCAN          | IDX_DEMO |      1 |      1 |    149K|00:00:00.02 |    1880 |    383 |
    Predicate Information (identified by operation id):
       2 - access("TYPE"='VIEW')
    20 rows selected.I'm looking forward for suggestions how to improve the performance of this statement.
    *-- End of template body --*
    I'm sure that if you follow these instructions and obtain the information described, post them using a proper formatting (don't forget about the \ tag) you'll receive meaningful advice very soon.
    So, just to make sure you didn't miss this point:Use proper formatting!
    If you think I missed something important in this sample post let me know so that I can improve it.
    Regards,
    Randolf
    Oracle related stuff blog:
    http://oracle-randolf.blogspot.com/
    SQLTools++ for Oracle (Open source Oracle GUI for Windows):
    http://www.sqltools-plusplus.org:7676/
    http://sourceforge.net/projects/sqlt-pp/                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

    Alex Nuijten wrote:
    ...you missed the proper formatting of the Autotrace section ;-)Alex,
    can't reproduce, does it still look unformatted? Or are you simply kidding? :-)
    Randolf
    PS: Just noticed that it actually sometimes doesn't show the proper formatting although the code tags are there. Changing to the \ tag helped in this case, but it seems to be odd.
    Edited by: Randolf Geist on Feb 23, 2009 11:28 AM
    Odd behaviour of forum software                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

  • SQl statement cause extreme Portal log growth

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