Connect to prior sql query

what is mean by CONNECT TO PRIOR? is it SQL keyword?
i have tried following query....
select level,max(sal) from emp
where level=2
connect to prior sal>sal
group by level
please explain above query........
thanx ....

check this also
http://www.oracle.com/technology/oramag/oracle/05-may/o35asktom.html

Similar Messages

  • Connect by prior (hierarchical query)

    Hi All,
    Some1 asked me a question which goes like this:
    Source
    emp_no dep_no
    110 10
    110 20
    110 30
    110 40
    120 10
    130 10
    130 20
    write a query to achieve the following output from the above source
    emp_no dept_no
    110 10203040
    120 10
    130 1020
    Now I have come across solutions with 'connect by prior' clauses but I am nt able to understand how oracle is producing that result , Could someone point me to a good article or text that can explain this concept very thoroughly( I have searched on google and got to see many articles but I couldnt able to understand it since these articles were not explaining everything)
    Regards
    Rahul

    You can try this:
    SQL> ed
    Wrote file afiedt.buf
      1  SELECT deptno,MAX(TRIM(SUBSTR(SYS_CONNECT_BY_PATH(empid,','),2)))
      2         KEEP(DENSE_RANK LAST ORDER BY deptno) FROM
      3  (SELECT deptno,empid,ROW_NUMBER() OVER(PARTITION BY deptno ORDER BY deptno) curr,
      4                       ROW_NUMBER() OVER(PARTITION BY deptno ORDER BY deptno) - 1 prev
      5  FROM emp)
      6  CONNECT BY PRIOR curr = prev
      7  AND deptno = PRIOR deptno
      8  START WITH curr = 1
      9* group by deptno
    SQL> /
        DEPTNO MAX(TRIM(SUBSTR(SYS_CONNECT_BY_PATH(EMPID,','),2)))KEEP(DENSE_RANKLASTORDERBYDEPTNO)
            10 1,2,3,4
            20 5,6,7
    SQL> select deptno,empid from emp;
        DEPTNO      EMPID
            10          1
            10          2
            10          3
            10          4
            20          5
            20          6
            20          7
    7 rows selected.
    SQL>

  • Can anyone please help with a Connect by PRIOR sql?

    Hi,
    I am not so well versed in Oracle analytic functions and am having trouble with a sql.
    Oracle Version: 9.2.0.1.0
    I have a tree table storing heirarchies upto 4 levels.
    create table FAMILY_TREE
    TREE_ID NUMBER not null,
    PARENT_ID NUMBER,
    NAME VARCHAR2(100)
    I know that using a CONNECT BY PRIOR, I can find out who the previous ancestar is.
    select
    f.tree_id TreeId,
    f.parent_id ParentId,
    f.Name Name
    from family_tree f
    connect by
    prior f.tree_id = f.parent_id
    start with f.parent_id is null
    I need to display all the ancestars in a single line (in different columns), which is where I am stumped.
    I need the output, in different columns as :
    Joe Jack Harry Rick Ned
    Bascially, I need to display in a single row, all the ancestars.
    I tried to use joins but it was very very slow due to the fact that I had to perform multiple joins.
    Can anyone please point me in the right direction?
    Data:
    insert into FAMILY_TREE (TREE_ID, PARENT_ID, NAME)
    values (1, null, 'Joe');
    insert into FAMILY_TREE (TREE_ID, PARENT_ID, NAME)
    values (2, 1, 'Jack');
    insert into FAMILY_TREE (TREE_ID, PARENT_ID, NAME)
    values (3, 2, 'Harry');
    insert into FAMILY_TREE (TREE_ID, PARENT_ID, NAME)
    values (4, 3, 'Rick');
    insert into FAMILY_TREE (TREE_ID, PARENT_ID, NAME)
    values (5, 4, 'Ned');

    This may give you a start
    SQL> ed
    Wrote file afiedt.buf
      1  select f.tree_id TreeId,f.parent_id ParentId,
      2          trim(',' from sys_connect_by_path(f.Name,',')) name
      3  from family_tree f
      4  connect by
      5  prior f.tree_id = f.parent_id
      6* start with f.parent_id is null
    SQL> /
        TREEID   PARENTID NAME
             1            Joe
             2          1 Joe,Jack
             3          2 Joe,Jack,Harry
             4          3 Joe,Jack,Harry,Rick
             5          4 Joe,Jack,Harry,Rick,Ned
    Message was edited by:
            jeneesh
    Forgot to refresh..                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

  • Connect by prior in Oracle 11g

    I am upgrading an application from 9i to 11g and I've been told that the connect by prior sql is broken. While I am waiting for the example and the error message, is 11g pickier about looping than 9i was? Can someone point me to some documentation on 10 or 11 changes to hierarchical queries?
    Thanks in advance.
    Jim

    Hi, Jim,
    user509659 wrote:
    I am upgrading an application from 9i to 11g and I've been told that the connect by prior sql is broken. What do you mean? Post a link, or at least a more complete description of the problem.
    While I am waiting for the example and the error message, is 11g pickier about looping than 9i was? Can someone point me to some documentation on 10 or 11 changes to hierarchical queries?There were a lot of improvements to CONNECT BY in Oracle 10, including CONNECT BY NOCYCLE (for working with loops), the CONNECT_BY_ROOT operator, and pseudo-columns CONNECT_BY_ISCYCLE and CONNECT_BY_ISLEAF. Look them up in the SQL Language manual for your version.
    I don't know of any improvements or changes to CONNECT BY in Oracle 11.
    Oracle 11.2 has recursive WITH clauses, that can do everything that CONNECT BY does, and more. Some things in 11.2 are simpler and more efficient using CONNECT BY, others are better done using recursive WITH clauses.
    Everything that CONNECT BY did in earlier versions, it does in Oracle 11, as well. If you have a CONNECT BY query that works in Oracle 9, it should work in Oracle 11, without any changes, though there might be better ways to get the same results in Oracle 11.
    Whenever you have a question, post youir code, and whatever is necessary to run it, including CREATE TABLE and INSERT statments for a little sample data. Post the results you want from that sample data, and an explanation of how you get those results from that data.
    Always say which version of Oracle you're using, e.g. 11.2.0.2.0. The difference between 11.1 and 11.2 may be very significant in this case.
    See the forum FAQ {message:id=9360002}

  • Repair Problem with Excel Removing All But First External SQL Query Tables

    We have an Excel 2007 XLSX workbook that we created for doing some business analysis from the SQL database that contains data from our MRP system. It started as a single sheet with one data connection running a SQL query. The data comes into
    the spreadsheet as a table and there are some basic row and column sums being done.
    After getting the first version up and running without problems, we decided to add some additional sheets to the same workbook. Since each of these additional sheets had only slight variations to the SQL query and the formatting was all to be the same, we
    simply copied the first sheet and modified the data connection for each successive sheet (each copy automatically created a copy of the data connection as well). Everything seemed to be up and running properly, so we saved and closed the workbook.
    A little bit later, the same workbook was re-opened and Excel reported that "Excel found unreadable content in '<file name>'. Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes." If Yes
    is clicked, then Excel indicates the repairs that were made. Only one was made for each sheet beyond the first and that was "Removed Part: /xl/queryTables/queryTable2.xml part. (External data range)". The result was that the data connection
    was deleted from every sheet other than the first and only static data left in place.
    We thought it might have actual been some corruption, so we deleted the static sheets and recreated them the same way. After saving and closing, re-opening the file resulted in the same problem. It seems that Excel is somehow saving data that it can't read
    when it opens. I would think it could be something in the SQL query, but all sheets have essentially the same SQL query, so I'm not sure why the first sheet survives. As a result, I think it must be something that it does in copying the sheet and the corresponding
    data connections, but I'm not sure.
    I think this might be some kind of bug, but would like to know if anyone else has encountered a similar problem and found a solution. A few internet searches didn't give me much to check out.
    Thanks in advance,
    indyvql

    KR,
    Thanks for your response. I don't think it applies in this case since the file was created brand new in Excel 2007 and used in the same. There was no 3rd-party program involved. I'm also not migrating from 2003 to 2010 as the stellarinfo.com article
    suggests. Some of the other suggestions there also don't make any difference as all the data links are lost on opening the worksheet, so copying and pasting doesn't do any good.
    I tried to create a simple example by creating a new workbook with a sheet with a very simple SQL query ("select * from X where a > b"), but in that example it worked fine. I'm guessing there is something key about the much more complex SQL query
    in my original file with the problem, but I'm not sure why it would only affect copies of the data connection and not the original data connection itself.
    Thanks,
    indyvql

  • SQL with connect by prior running for a long time

    Hi,
    We are using Oracle 10g. Below is a cursor sql which is having performance issues. The pAccountid is being passed from the output of a different cursor. But this cursor sql is running for a long time. Could you please help me in tuning this sql. I believe the subquery with connect by prior is causing the trouble.
    The TRXNS is a huge table which is not partitioned. The query is forced to use the index on the accountid of the TRXNS table.
    The accountlink table has 20,000 records and the TRXNStrack table has 10,000 records in total.
    This sql executes for 200,000 pAccountids and runs for more than 8 hours.
    SELECT /*+ INDEX(T TRXNS_ACCOUNTID_NIDX) */ AL.FROMACCOUNTID oldaccountid ,
                                    A.ACCOUNTNUM  oldaccountnum,
                                   T.TRXNSID,
                                   T.TRXNSTYPEID,
                                   T.DESCRIPTION ,
                                   T.postdt,
                                   T.TRXNSAMT
                        FROM
                        ACCOUNTLINK AL,
                        TRXNS T,
                        ACCOUNT A
                       WHERE AL.TOACCOUNTID IN
                                                             (SELECT TOACCOUNTID FROM ACCOUNTLINK START WITH TOACCOUNTID = pAccountid
                                                                                                                         CONNECT BY PRIOR FROMACCOUNTID  = TOACCOUNTID)
                            AND AL.FROMACCOUNTID = T.ACCOUNTID
                            AND A.ACCOUNTID = AL.FROMACCOUNTID
    AND NOT EXISTS (select 1 from TRXNStrack trck where trck.TRXNSid = t.TRXNSid AND TRXNSTrackReasonid = 1)
                            AND T.postdt > A.CLOSEDATE
                            AND T.postdt >= sysdate-2
                            AND T.postdt <= sysdate;
    Create script for trxn table:
    CREATE TABLE SP.TRXNS
      TRXNSID      NUMBER(15) CONSTRAINT "BIN$rpIQEeyLDfbgRAAUT4DEnQ==$0" NOT NULL,
      ACCOUNTID    NUMBER(15) CONSTRAINT "BIN$rpIQEeyMDfbgRAAUT4DEnQ==$0" NOT NULL,
      STATEMENTID  NUMBER(15),
      TRXNSTYPEID  NUMBER(15),
      DESCRIPTION  VARCHAR2(80 BYTE),
      postdt     DATE,
      TRXNSAMT     NUMBER(12,2),
      TRXNSREQID   NUMBER(15),
      LASTUPDATE   DATE,
      SOURCEID     NUMBER(15),
      HIDE         VARCHAR2(1 BYTE)
    TABLESPACE SO_TRXN_DATA
    RESULT_CACHE (MODE DEFAULT)
    PCTUSED    40
    PCTFREE    10
    INITRXNS   2
    MAXTRXNS   255
    STORAGE    (
                INITIAL          50M
                NEXT             1M
                MINEXTENTS       1
                MAXEXTENTS       UNLIMITED
                PCTINCREASE      0
                FREELISTS        8
                FREELIST GROUPS  1
                BUFFER_POOL      DEFAULT
                FLASH_CACHE      DEFAULT
                CELL_FLASH_CACHE DEFAULT
    LOGGING
    NOCOMPRESS
    NOCACHE
    NOPARALLEL
    MONITORING;
    CREATE INDEX SP.TRXNS_ACCOUNTID_NIDX ON SP.TRXNS
    (ACCOUNTID, postdt)
    LOGGING
    TABLESPACE SO_TRXN_INDEX
    PCTFREE    10
    INITRXNS   2
    MAXTRXNS   255
    STORAGE    (
                INITIAL          64K
                NEXT             1M
                MINEXTENTS       1
                MAXEXTENTS       UNLIMITED
                PCTINCREASE      0
                FREELISTS        1
                FREELIST GROUPS  1
                BUFFER_POOL      DEFAULT
                FLASH_CACHE      DEFAULT
                CELL_FLASH_CACHE DEFAULT
    NOPARALLEL;
    below is the executing plan for this sql taken from toad :
    PLAN_ID
    TIMESTAMP
    OPERATION
    OPTIONS
    OBJECT_OWNER
    OBJECT_NAME
    OBJECT_ALIAS
    OBJECT_INSTANCE
    OBJECT_TYPE
    OPTIMIZER
    SEARCH_COLUMNS
    ID
    PARENT_ID
    DEPTH
    POSITION
    COST
    CARDINALITY
    BYTES
    CPU_COST
    IO_COST
    TEMP_SPACE
    ACCESS_PREDICATES
    FILTER_PREDICATES
    PROJECTION
    TIME
    QBLOCK_NAME
    1121
    9/10/2013 3:30
    FILTER
    1
    0
    1
    1
    NOT EXISTS (SELECT 0 FROM "TRXNSTRACK" "TRCK" WHERE "TRXNSTRACKREASONID"=1 AND "TRCK"."TRXNSID"=:B1)
    AL."FROMACCOUNTID"[NUMBER,22], "T"."TRXNSID"[NUMBER,22], "T"."TRXNSTYPEID"[NUMBER,22], "T"."DESCRIPTION"[VARCHAR2,80], "T"."POSTDT"[DATE,7], "T"."TRXNSAMT"[NUMBER,22], "A"."ACCOUNTNUM"[VARCHAR2,19]
    SEL$5DA710D3
    1121
    9/10/2013 3:30
    FILTER
    2
    1
    2
    1
    SYSDATE@!-2<=SYSDATE@!
    AL."FROMACCOUNTID"[NUMBER,22], "T"."TRXNSID"[NUMBER,22], "T"."TRXNSTYPEID"[NUMBER,22], "T"."DESCRIPTION"[VARCHAR2,80], "T"."POSTDT"[DATE,7], "T"."TRXNSAMT"[NUMBER,22], "A"."ACCOUNTNUM"[VARCHAR2,19]
    1121
    9/10/2013 3:30
    NESTED LOOPS
    3
    2
    3
    1
    (#keys=0) "AL"."FROMACCOUNTID"[NUMBER,22], "T"."TRXNSID"[NUMBER,22], "T"."TRXNSTYPEID"[NUMBER,22], "T"."DESCRIPTION"[VARCHAR2,80], "T"."POSTDT"[DATE,7], "T"."TRXNSAMT"[NUMBER,22], "A"."ACCOUNTNUM"[VARCHAR2,19]
    1121
    9/10/2013 3:30
    NESTED LOOPS
    4
    3
    4
    1
    5
    1
    119
    3989858
    4
    (#keys=0) "AL"."FROMACCOUNTID"[NUMBER,22], "T"."TRXNSID"[NUMBER,22], "T"."TRXNSTYPEID"[NUMBER,22], "T"."DESCRIPTION"[VARCHAR2,80], "T"."POSTDT"[DATE,7], "T"."TRXNSAMT"[NUMBER,22], "A".ROWID[ROWID,10]
    1
    1121
    9/10/2013 3:30
    NESTED LOOPS
    5
    4
    5
    1
    4
    1
    90
    3989690
    3
    (#keys=0) "AL"."FROMACCOUNTID"[NUMBER,22], "T"."TRXNSID"[NUMBER,22], "T"."TRXNSTYPEID"[NUMBER,22], "T"."DESCRIPTION"[VARCHAR2,80], "T"."POSTDT"[DATE,7], "T"."TRXNSAMT"[NUMBER,22]
    1
    1121
    9/10/2013 3:30
    HASH JOIN
    SEMI
    6
    5
    6
    1
    3
    2
    54
    3989094
    2
    AL."TOACCOUNTID"="TOACCOUNTID"
    (#keys=1) "AL"."FROMACCOUNTID"[NUMBER,22]
    1
    1121
    9/10/2013 3:30
    INDEX
    FULL SCAN
    SP
    ACCOUNTLINK_AK1
    AL@SEL$1
    INDEX (UNIQUE)
    ANALYZED
    7
    6
    7
    1
    1
    18
    252
    107
    1
    AL."FROMACCOUNTID"[NUMBER,22], "AL"."TOACCOUNTID"[NUMBER,22]
    1
    SEL$5DA710D3
    1121
    9/10/2013 3:30
    VIEW
    SYS
    VW_NSO_1
    VW_NSO_1@SEL$5DA710D3
    11
    VIEW
    8
    6
    7
    2
    2
    18
    234
    107
    1
    TOACCOUNTID[NUMBER,22]
    1
    SEL$683B0107
    1121
    9/10/2013 3:30
    CONNECT BY
    NO FILTERING WITH START-WITH
    9
    8
    8
    1
    TOACCOUNTID=PRIOR "FROMACCOUNTID"
    TOACCOUNTID=56354162
    TOACCOUNTID[NUMBER,22], "FROMACCOUNTID"[NUMBER,22], PRIOR NULL[22], LEVEL[4]
    SEL$683B0107
    1121
    9/10/2013 3:30
    INDEX
    FULL SCAN
    SP
    ACCOUNTLINK_AK1
    ACCOUNTLINK@SEL$3
    INDEX (UNIQUE)
    ANALYZED
    10
    9
    9
    1
    1
    18
    252
    107
    1
    ACCOUNTLINK.ROWID[ROWID,10], "FROMACCOUNTID"[NUMBER,22], "TOACCOUNTID"[NUMBER,22]
    1
    SEL$3
    1121
    9/10/2013 3:30
    TABLE ACCESS
    BY INDEX ROWID
    SP
    TRXNS
    T@SEL$1
    2
    TABLE
    ANALYZED
    11
    5
    6
    2
    1
    1
    63
    298
    1
    T."TRXNSID"[NUMBER,22], "T"."TRXNSTYPEID"[NUMBER,22], "T"."DESCRIPTION"[VARCHAR2,80], "T"."POSTDT"[DATE,7], "T"."TRXNSAMT"[NUMBER,22]
    1
    SEL$5DA710D3
    1121
    9/10/2013 3:30
    INDEX
    RANGE SCAN
    SP
    TRXNS_ACCOUNTID_NIDX
    T@SEL$1
    INDEX
    ANALYZED
    2
    12
    11
    7
    1
    1
    1
    224
    1
    AL."FROMACCOUNTID"="T"."ACCOUNTID" AND "T"."POSTDT">=SYSDATE@!-2 AND "T"."POSTDT"<=SYSDATE@!
    T.ROWID[ROWID,10], "T"."POSTDT"[DATE,7]
    1
    SEL$5DA710D3
    1121
    9/10/2013 3:30
    INDEX
    UNIQUE SCAN
    SP
    ACCOUNT_PK
    A@SEL$1
    INDEX (UNIQUE)
    ANALYZED
    1
    13
    4
    5
    2
    1
    1
    90
    1
    A."ACCOUNTID"="AL"."FROMACCOUNTID"
    A.ROWID[ROWID,10]
    1
    SEL$5DA710D3
    1121
    9/10/2013 3:30
    TABLE ACCESS
    BY INDEX ROWID
    SP
    ACCOUNT
    A@SEL$1
    3
    TABLE
    ANALYZED
    14
    3
    4
    2
    1
    1
    29
    168
    1
    A."CLOSEDATE"<SYSDATE@! AND "T"."POSTDT">"A"."CLOSEDATE"
    A."ACCOUNTNUM"[VARCHAR2,19]
    1
    SEL$5DA710D3
    1121
    9/10/2013 3:30
    INDEX
    RANGE SCAN
    SP
    TRXNSTRACK_TRXNSID_NIDX
    TRCK@SEL$6
    INDEX
    ANALYZED
    2
    15
    1
    2
    2
    1
    1
    10
    73
    1
    TRCK."TRXNSID"=:B1 AND "TRXNSTRACKREASONID"=1
    TRCK."TRXNSID"[NUMBER,22], "TRXNSTRACKREASONID"[NUMBER,22]
    1
    SEL$6
    Please help me in debugging this thanks!

    Hi,
    Thanks for your thought on this subject. Below is the trace info that I got from the DBA
    SQL ID: d0x879qx2zgtz Plan Hash: 4036333519
    SELECT /*+ INDEX(T TRXNS_ACCOUNTID_NIDX) */ AL.FROMACCOUNTID OLDACCOUNTID ,
      A.ACCOUNTNUM OLDACCOUNTNUM, T.TRXNSID, T.TRXNSTYPEID, T.DESCRIPTION ,
      T.POSTDT, T.TRXNSAMT
    FROM
    ACCOUNTLINK AL, TRXNS T, ACCOUNT A WHERE AL.TOACCOUNTID IN (SELECT
      TOACCOUNTID FROM ACCOUNTLINK START WITH TOACCOUNTID = :B3 CONNECT BY PRIOR
      FROMACCOUNTID = TOACCOUNTID) AND AL.FROMACCOUNTID = T.ACCOUNTID AND
      A.ACCOUNTID = AL.FROMACCOUNTID AND NOT EXISTS (SELECT 1 FROM TRXNSTRACK
      TRCK WHERE TRCK.TRXNSID = T.TRXNSID AND TRXNSTRACKREASONID = :B4 ) AND
      T.POSTDT > A.CLOSEDATE AND T.POSTDT >= :B2 AND T.POSTDT <= :B1
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        0      0.00       0.00          0          0          0           0
    Execute  17160      2.10       1.87          0          0          0           0
    Fetch    17160   7354.61    7390.86     169408    5569856  883366791           0
    total    34320   7356.71    7392.74     169408    5569856  883366791           0
    Misses in library cache during parse: 0
    Optimizer mode: CHOOSE
    Parsing user id: 38     (recursive depth: 1)
    SQL ID: gs89hpavb4cts Plan Hash: 3415795327
    SELECT A.ACCOUNTID, C.MEMBERID, A.PROGRAMID, A.ACCOUNTNUM
    FROM
    CUSTOMER C, CUSTOMERACCOUNT CA, ACCOUNT A, PROGRAMPARAMVALUE PPV,
      BATCHPROCESSPROGRAM BP WHERE A.PROGRAMID = BP.PROGRAMID AND A.PROGRAMID =
      PPV.PROGRAMID AND A.ACCOUNTID = CA.ACCOUNTID AND CA.PERSONID = C.PERSONID
      AND PPV.PARAMID = :B2 AND PPV.VALUE = 'Y' AND BP.PROCESSID = :B1 AND BP.RUN
      = 'Y' AND A.ACCOUNTTYPEID = 4 AND A.ACCOUNTSTATUSID = 1 AND C.MEMBERID IS
      NOT NULL
    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      172     13.14     115.34      80826     278650          0       17200
    total      172     13.14     115.34      80826     278650          0       17200
    Misses in library cache during parse: 0
    Parsing user id: 38     (recursive depth: 1)
    OVERALL TOTALS FOR ALL NON-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
    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  17160      2.10       1.87          0          0          0           0
    Fetch    17332   7367.75    7506.21     250234    5848506  883366791       17200
    total    34492   7369.85    7508.09     250234    5848506  883366791       17200
    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: svoprod_ora_12346.trc
    Trace file compatibility: 11.1.0.7
    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.
       66499  lines in trace file.
        7516  elapsed seconds in trace file.

  • How to use simple SQL instead of Connect By Prior

    Currently, I am using "connect by prior" query in the application, but for reason I don�t want to use this connect by query so can any one please tell how does I get the same result by using SQL, I tried this by using procedure but unable to get the same result, specially LEVEL of the tree.
    So please tell, how would I get the correct data.
    Thanks in advance,
    AMIT.

    Hi,
    Whenever you have a question, it helps to post:
    (1) The version of Oracle (and any other relevant software) you're using
    (2) A little sample data (just enough to show what the problem is) from all the relevant tables
    (3) The results you want from that data
    (4) Your best attempt so far (formatted) I don't believe the unformated code you posted is what you're really running, since it has a syntax error ("... WHERE START WITH ..."). Please post code that really works with the sample data you posrted.
    (5) The full error message (if any), including line number
    Executable SQL statements (like "CREATE TABLE AS ..." or "INSERT ..." statements) are best for (2).
    If you can present your problem using commonly available tables (for example, scott.emp, which contains a hierarchy), then you can omit (2).
    Formatted tabular output is okay for (3). Type these 6 characters
    &#123;code&#125;
    (small letters only, inside curly brackets) before and after the tabular text, to preserve spacing.
    As Alex said, why don't you want to use CONNECT BY?
    Are you getting the correct results now, but just looking for a different way of getting them?
    Depending on your exact requirements, you could write a PLSQL function that mimics LEVEL. Don't expect it to be fast.
    Nested Sets is a completely different way of modeling trees.
    Some things are much easier with Nested Sets than they are using the Adjacency Model (the parent-child model that uses CONNECT BY).
    But some things are much harder with Nested Sets, and LEVEL is one of them.

  • Query tuning for query using connect by prior

    I have written following query to fetch the data. The query is written in this format because there are multiple rows, which make one recrd and we need to bring that record into one row.
    For one CAT(commented here), this query takes around 4 minutes and fetches 6900 records but when it runs for 3 CAT, it takes 17 mins.
    I want to tune this as this has to run for 350 CAT values.
    It is doing FTS on the main table. I tried to use different hints like PARALLEL, APPEND (in insert) but nothing worked.
    The cost of the query is 51.
    Any help/suggestions will be appreciated.
    SELECT DISTINCT MIN(SEQ) SEQ,
    PT, APP, IT, LR, QT,CD, M_A_FLAG,
    STRAGG(REM) REM, -- aggregates the data from different columns to one which is parent
    CAT
    FROM (WITH R AS (SELECT CAT, SEQ, PT, M_A_FLAG, IT, LR,QT,CD, REM, APP
    FROM table1
    WHERE REC = '36' AND M_A_FLAG = '1'
    --AND CAT = '11113')
    SELECT CAT, SEQ,
    CONNECT_BY_ROOT PT AS PT,
    CONNECT_BY_ROOT APP AS APPL,
    M_A_FLAG,
    CONNECT_BY_ROOT IT AS IT,
    CONNECT_BY_ROOT LR AS LR,
    CONNECT_BY_ROOT QT AS QT,
    CONNECT_BY_ROOT CD AS CD,
    REM
    FROM R A
    START WITH PT IS NOT NULL
    CONNECT BY PRIOR SEQ + 1 = SEQ
    AND PRIOR CAT = CAT
    AND PT IS NULL)
    GROUP BY PT, APP, IT,LR, QT, CD, M_A_FLAG, CAT
    ORDER BY SEQ;
    Thanks.
    Edited by: user2544469 on Feb 11, 2011 1:12 AM

    The following threads detail the approach and information required.
    Please gather relevant info and post back.
    How to post a SQL tuning request - HOW TO: Post a SQL statement tuning request - template posting
    When your query takes too long - When your query takes too long ...

  • CONNECT BY PRIOR and performance of Query Plan

    Anyone,
    I have an SQL Statement that is performing rather slow and I am trying to figure out if I could optimize it. Here is the SQL:
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            maximo.equipment.eqnum, maximo.equipment.parent, LEVEL
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    SELECT STATEMENT (REMOTE)
       SORT (ORDER BY)
          FILTER
             CONNECT BY
                 INDEX (FAST FULL SCAN) EQNDX99 (NON-UNIQUE)
                 TABLE ACESS (BY USER ROWID) EQUIPMENT
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    Thanks for any help I can get,
    David Miller

    how long does it takes to complete the query?

  • Problem Creating a query for a hierarchical tree. [using connect by prior]

    Hi all,
    I have 2 tables.
    box (box_id, box_name)
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    LIKE:
    |---BOX1
    | |----ITEM 1
    | |----ITEM 2
    |
    |---BOX2
    | |----ITEM 1
    | |----ITEM 2
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    Michaël.
    PS. Then i will eventually use this query in forms builder.

    Note the name of this forum is "SQL Developer *(Not for general SQL/PLSQL questions)*" - so only for issues with the SQL Developer tool. Please post these questions under the dedicated SQL And PL/SQL forum.
    Regards,
    K.

  • Complex connect by prior query

    I need SQL(for hierarchical tree) for a function which accepts node as input parameter and returns ref cursor.
    Following is a sample tree:
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    --2.1
    ----3.1
    ------4.1
    --------5.1
    ----------6.1
    ----------6.2
    ----3.2
    ------4.2
    --------5.2
    --2.2
    ----3.2
    ------4.2
    --------5.2
    ----3.3
    ----3.4
    ------4.1
    --------5.1
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    ----------6.2
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    ------4.1
    --------5.1
    ----------6.1
    ----------6.2
    --2.2
    ----3.4
    ------4.1
    --------5.1
    ----------6.1
    ----------6.2
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    --2.1
    ----3.2
    ------4.2
    --------5.2
    --2.2
    ----3.2
    ------4.2
    --------5.2
    The complex part, I guess, is to remove unwanted(not related) branches from the tree.
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    ID     PARENT     CHILD
    1-------1-------2.1
    2-------1-------2.2
    3-------2.1-----3.1
    4-------2.1-----3.2
    5-------2.2-----3.2
    6-------2.2-----3.3
    7-------2.2-----3.4
    8-------3.1-----4.1
    9-------3.2-----4.2
    10------3.4-----4.1
    11------4.1-----5.1
    12------4.2-----5.2
    13------5.1-----6.1
    14------5.1-----6.2
    Pls. help me out to form this CONNECT BY PRIOR query.
    Thanks in advance.

    make sure you include 2 things in your queries.
    # the row number
    # the level
    for traversing up the tree set
    level = 0 - level and
    row_number = 0 - row_number.
    you than can then do an order by row_number if you union the two queries
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    ============
    select tbl.child,
    tbl.parent,
    level lvl,
    rownum rn
    from some_table tbl
    start with tbl.parent = 4.1
    connect by prior tbl.child = tbl.parent
    union
    select tbl.child,
    tbl.parent,
    0 - level lvl,
    0 - rownum rn
    from some_table tbl
    start with tbl.child = 4.1
    connect by prior tbl.parent = tbl.child
    order by rn asc

  • Connect by prior working in sql but not in forms 10g hierarchical tree

    Hello Friends,
    I have the following connect by prior example which is working in sql command prompt but not in Forms 10g hierarchical tree item type. Can you please let me know why ?
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    3 labeller NodeLabel,
    4 NULL NodeIcon,
    5 to_char(reportno) NodeValue
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    8 CONNECT BY PRIOR reportno = labelno
    9 /
    INITIALSTATE DEPTH NODELABEL N NODEVALUE
    1 1 FIRST 10000
    1 2 report1 UD Label 1
    1 2 report2 UD Label 2
    1 2 report3 UD Label 3
    1 1 SECOND 10001
    1 1 THIRD 10002
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    2 level Depth,
    3 labeller NodeLabel,
    4 NULL NodeIcon,
    5 to_char(reportno) NodeValue
    6 FROM reports
    7 start with reportno > 9999
    8 CONNECT BY PRIOR reportno = labelno

    Thanks Room,
    This command worked ! I will put the sample working code here. It will help you to filter the records in a tree in sql command prompt as well as in forms hierarchical tree 10g.
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    level Depth,
    labeller NodeLabel,
    NULL NodeIcon,
    to_char(reportno) NodeValue
    FROM reports
    start with reportno > 9999
    CONNECT BY PRIOR reportno = labelno
    AND FORMNAME = :reports.testitem

  • Connect by prior query

    Issue with the below query. The query is not getting filtered for the condition hier_typ_c in('BS') with the connect by prior
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    Just wondering how do i restrict the query just to fetch the type_c ='BS' alone? why is it giving all the records??
    Select 
            Level                 as  LEVEL_CODE,
            h.HIER_PRNT_NODE_I    as  PARENT,
            h.HIER_CHLD_NODE_I    as  CHILD,
            h.HIER_CHLD_NODE_X || ' (' || h.HIER_CHLD_NODE_I || ')'   as  ALIAS
            From        (Select  Distinct HIER_CHLD_NODE_I, HIER_PRNT_NODE_I,
                                HIER_CHLD_NODE_X from .HIER_DIMN
                         where hier_typ_c in('BS') and CURR_VER_C = 'Y') h
                         Start with  h.HIER_PRNT_NODE_I = 'ROOT'
            Connect by prior
                   h.HIER_CHLD_NODE_I = h.HIER_PRNT_NODE_I
    Order by    LEVEL_CODE, parent, child

    Hi
    It loks like you're doing it right.
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    I would expect the sub-query FROM clause to cause an error because of the '.'.
    from .HIER_DIMNEdited by: Frank Kulash on Sep 29, 2009 11:16 AM

  • SQL query to get the Datetime 06 hours prior to the table Datetime value

    Hi Experts,
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    Regards,
    Sundar
    Sundar

    Hi All,
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    Query 01: Select Top 1 VMName from TestTable where
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    Query 02: Select
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    and ExecutionTime >
    dateadd(hour,-6,getdate())
    Query 03: Select
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    Regards,
    Sundar
    Sundar

  • Strange Behaviour of Connect By Prior query

    Has anybody faced a problem like your query returns alternative record like suppose you have 10 records in a table and your connect by prior query gives you 1st, 3rd, 5th and so on. My query was working fine few days back but suddenly its giving me different result. I don't know whether there was some settings changed by someone or not.

    Can't guess anything from here. You need to post the query, sample data and the result.

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