Query optimization...provide thoughts..

Could someone suggest improvements to my query?
SELECT 'B'||','||GC.GEO||','||GC.PROD||','||','||','||','||','||','||SUM(GC.FACT_AMT)||','||GC.CURRENCY||','||GC.DUE_PERD||','||GC.MEASR content
FROM
(SELECT FD.GEO,FD.PROD,PROFT_CTR,FD.MEASR,(FACT_AMT_16-FACT_AMT_15) FACT_AMT,DECODE(FD.ISO_CRNCY_CODE_CHAR,NULL,'USD') CURRENCY,FD.DUE_PERD
FROM FACT FD
WHERE FD.PROD IN (SELECT DISTINCT DSEND FROM PROD WHERE STRCT_CODE='4518' AND CTRL_PERD=(SELECT MAX(CTRL_PERD) FROM PROD WHERE STRCT_CODE='722') AND STRCT_CODE='4518' AND PARNT='000000011' AND DSEND_LVL=8 )
AND FD.GEO = '4156'
AND FD.MEASR IN
('84858',
'54858',
'45685',
'12345')
AND DUE_PERD = (SELECT TRUNC(LAST_DAY(ADD_MONTHS(SYSDATE,-2))) + 1 FROM DUAL)
AND FD.TIME_PERD IN (SELECT TIME_PERD FROM TIME_PERD WHERE TIME_PERD_TYPE_CODE ='MONTHS' AND END_DATE = ADD_MONTHS(TRUNC(LAST_DAY(SYSDATE)),-1))) GC
GROUP BY GC.GEO,GC.PROD,GC.CURRENCY,GC.DUE_PERD,GC.MEASR
ORDER BY GC.GEO,GC.PROD,GC.CURRENCY,GC.DUE_PERD,GC.MEASR;
PLAN_TABLE_OUTPUT
| Id | Operation                             | Name                  | Rows | Bytes | Cost | Pstart| Pstop |
|   0 | SELECT STATEMENT                      |                        |     8 |   624 | 1715 |       |       |
|   1 | SORT GROUP BY                        |                        |     8 |   624 | 1715 |       |       |
|   2 |   NESTED LOOPS                        |                        |    81 | 6318 | 1702 |       |       |
|   3 |    NESTED LOOPS                       |                        |    81 | 4779 | 1702 |       |       |
|   4 |     VIEW                              | VW_NSO_1               |     4 |    40 |   380 |       |       |
|   5 |      SORT UNIQUE                      |                        |     4 |   192 |   380 |       |       |
|   6 |       PARTITION RANGE SINGLE          |                        |       |       |       |   KEY |   KEY |
|   7 |        TABLE ACCESS FULL              | PROD                   |     4 |   192 |   367 |   KEY |   KEY |
|   8 |         SORT AGGREGATE                |                        |     1 |    13 |       |       |       |
|   9 |          PARTITION RANGE ITERATOR     |                        |       |       |       |    56 |    62 |
| 10 |           INDEX FAST FULL SCAN        | PROD_IDX2              | 5963K|    73M|   936 |    56 |    62 |
| 11 |     PARTITION RANGE ITERATOR          |                        |       |       |       |     1 |     2 |
| 12 |      TABLE ACCESS BY LOCAL INDEX ROWID| FACT                   |    20 |   980 | 1702 |     1 |     2 |
| 13 |       BITMAP CONVERSION TO ROWIDS     |                        |       |       |       |       |       |
| 14 |        BITMAP AND                     |                        |       |       |       |       |       |
| 15 |         BITMAP INDEX SINGLE VALUE     | FACT_PROD              |       |       |       |     1 |     2 |
| 16 |         BITMAP INDEX SINGLE VALUE     | FACT_GEO               |       |       |       |     1 |     2 |
| 17 |       TABLE ACCESS FULL               | DUAL                   | 8168 |       |     4 |       |       |
| 18 |    INDEX UNIQUE SCAN                  | TIME_PERD_IDX2         |     1 |    19 |       |       |       |Thanks,
Bhagat

I was sure..day dreaming..
Now I'm awake,changed my query as below:
SELECT 'B'||','||GC.GEO||','||GC.PROD||','||','||','||','||','||','||SUM(GC.FACT_AMT)||','||GC.CURRENCY||','||GC.DUE_PERD||','||GC.MEASR content
FROM
(SELECT FD.GEO,FD.PROD,PROFT_CTR,FD.MEASR,(FACT_AMT_16-FACT_AMT_15) FACT_AMT,DECODE(FD.ISO_CRNCY_CODE_CHAR,NULL,'USD') CURRENCY,FD.DUE_PERD
FROM FACT FD
WHERE EXISTS (SELECT DISTINCT DSEND FROM PROD WHERE DSEND_ID=FD.PROD_ID AND STRCT_CODE='4518' AND CTRL_PERD='12-SEP-06' AND STRCT_CODE='4518' AND PARNT='000000011' AND DSEND_LVL=8 )
AND FD.GEO = '4156'
AND FD.MEASR IN
('84858',
'54858',
'45685',
'12345')
AND DUE_PERD =(TRUNC(LAST_DAY(ADD_MONTHS(SYSDATE,-2))) + 1 )
AND EXISTS (SELECT TIME_PERD FROM TIME_PERD WHERE TIME_PERD_TYPE_CODE ='MONTHS' AND END_DATE = ADD_MONTHS(TRUNC(LAST_DAY(SYSDATE)),-1))) GC
GROUP BY GC.GEO,GC.PROD,GC.CURRENCY,GC.DUE_PERD,GC.MEASR
ORDER BY GC.GEO,GC.PROD,GC.CURRENCY,GC.DUE_PERD,GC.MEASR;
and plan below:
PLAN_TABLE_OUTPUT
| Id | Operation                            | Name                  | Rows | Bytes | Cost | Pstart| Pstop |
|   0 | SELECT STATEMENT                     |                        | 10066 |   422K| 98146 |       |       |
|   1 | SORT GROUP BY                       |                        | 10066 |   422K| 98146 |       |       |
|   2 |   FILTER                             |                        |       |       |       |       |       |
|   3 |    PARTITION RANGE ITERATOR          |                        |       |       |       |     1 |     2 |
|   4 |     TABLE ACCESS BY LOCAL INDEX ROWID| FACT                   |   370K|    15M| 95453 |     1 |     2 |
|   5 |      BITMAP CONVERSION TO ROWIDS     |                        |       |       |       |       |       |
|   6 |       BITMAP AND                     |                        |       |       |       |       |       |
|   7 |        BITMAP INDEX SINGLE VALUE     | FACT_GEO               |       |       |       |     1 |     2 |
|   8 |        BITMAP OR                     |                        |       |       |       |       |       |
|   9 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 10 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 11 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 12 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 13 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 14 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 15 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 16 |         BITMAP INDEX SINGLE VALUE    | FACT_MEASR             |       |       |       |     1 |     2 |
| 17 |    PARTITION RANGE SINGLE            |                        |       |       |       |   KEY |   KEY |
| 18 |     TABLE ACCESS BY LOCAL INDEX ROWID| PROD_ASSOC_DNORM       |     4 |   152 | 17954 |   KEY |   KEY |
| 19 |      INDEX RANGE SCAN                | PROD_ASSOC_DNORM_IDX3 | 22849 |       | 1406 |   KEY |   KEY |
| 20 |    INDEX RANGE SCAN                  | TIME_PERD_IDX2         |     1 |    13 |     2 |       |       |
[\pre]
Thanks,
Bhagat
Message was edited by:
        Bugs
Message was edited by:
        Bugs

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Message was edited by: Gaurav

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Error
View Display Error
Odbc driver returned an error (SQLExecDirectW).
Error Details
Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 43113] Message returned from OBIS. [nQSError: 43119] Query Failed: [nQSError: 46008] Internal error: File server\Query\Optimizer\SmartScheduler\PhysicalRequestGenerator\Src\SQOSPMarkMultiTargetSupport.cpp, line 1680. (HY000)
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Jun 28 2012 08:36:30
Copyright (c) Microsoft Corporation
Standard Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1)
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2014-11-08 01:24:02.22 Server      Error: 17300, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:02.22 Server      Error: 17300, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:02.30 Server      Error: 17312, Severity: 16, State: 1.
2014-11-08 01:24:02.30 Server      SQL Server is terminating a system or background task Fulltext Host Controller Timer Task due to errors in starting up the task (setup state 1).
2014-11-08 01:24:02.22 spid74      Error: 701, Severity: 17, State: 123.
2014-11-08 01:24:02.22 spid74      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:13.22 Server      Error: 17312, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:13.22 spid87      Error: 701, Severity: 17, State: 123.
2014-11-08 01:24:13.22 spid87      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:13.22 spid63      Error: 701, Severity: 17, State: 130.
2014-11-08 01:24:13.22 spid63      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:13.22 spid57      Error: 701, Severity: 17, State: 123.
2014-11-08 01:24:13.22 spid57      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:13.22 Server      Error: 17300, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:18.26 Server      Error: 17300, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:24.43 spid81      Error: 701, Severity: 17, State: 123.
2014-11-08 01:24:24.43 spid81      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:18.25 Server      Error: 18052, Severity: -1, State: 0. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:18.25 Server      BRKR TASK: Operating system error Exception 0x1 encountered.
2014-11-08 01:24:30.11 Server      Error: 17300, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:30.11 Server      Error: 17300, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:35.18 spid57      Error: 701, Severity: 17, State: 131.
2014-11-08 01:24:35.18 spid57      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:35.18 spid71      Error: 701, Severity: 17, State: 193.
2014-11-08 01:24:35.18 spid71      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:35.18 Server      Error: 17312, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:35.41 Server      Error: 17312, Severity: 16, State: 1.
2014-11-08 01:24:35.41 Server      SQL Server is terminating a system or background task SSB Task due to errors in starting up the task (setup state 1).
2014-11-08 01:24:35.71 Server      Error: 17053, Severity: 16, State: 1.
2014-11-08 01:24:35.71 Server      BRKR TASK: Operating system error Exception 0x1 encountered.
2014-11-08 01:24:35.71 spid73      Error: 701, Severity: 17, State: 123.
2014-11-08 01:24:35.71 spid73      There is insufficient system memory in resource pool 'internal' to run this query.
2014-11-08 01:24:46.30 Server      Error: 17312, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:51.31 Server      Error: 17053, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:51.31 Server      Error: 17300, Severity: 16, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
2014-11-08 01:24:51.31 Logon       Error: 18052, Severity: -1, State: 0. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
Last error message is half an hour after the inital Out of memory at 2014-11-08 01:52:54.03. Then the Instance is completely shut down
From the memory information in the error log we can see that all the memory is consumed by the QUERY_OPTIMIZER
Buffer Pool                                   Value
Committed                                   2621440
Target                                      2621440
Database                                     130726
Dirty                                          3682
In IO
0
Latched
1
Free
346
Stolen                                      2490368
Reserved                                          0
Visible                                     2621440
Stolen Potential                                  0
Limiting Factor                                  17
Last OOM Factor                                   0
Last OS Error                                     0
Page Life Expectancy                             28
2014-11-08 01:22:48.90 spid75
Process/System Counts                         Value
Available Physical Memory                29361627136
Available Virtual Memory                 8691842715648
Available Paging File                    51593969664
Working Set                               628932608
Percent of Committed Memory in WS               100
Page Faults                                48955000
System physical memory high                       1
System physical memory low                        0
Process physical memory low                       1
Process virtual memory low                        0
MEMORYCLERK_SQLOPTIMIZER (node 1)                KB
VM Reserved                                       0
VM Committed                                      0
Locked Pages Allocated                            0
SM Reserved                                       0
SM Committed                                      0
SinglePage Allocator                       19419712
MultiPage Allocator                             128
Memory Manager                                   KB
VM Reserved                               100960236
VM Committed                                 277664
Locked Pages Allocated                     21483904
Reserved Memory                                1024
Reserved Memory In Use                            0
On the other side MDW reports that the MEMORYCLERK_SQLOPTIMIZER increases since the execution of the query up to the point of OUTOF MEMORY, but the Average value is 54.7 MB during that period as can be seen on attached graph.
We have encountered this issue already two times (every time the critical query is executed).

Hi,
This does seems to me kind of memory Leak and actually it is from SQL Optimizer which leaked memory from buffer pool so much that it did not had any memory to be allocated for new page.
MEMORYCLERK_SQLOPTIMIZER (node 1)                KB
VM Reserved                                       0
VM Committed                                      0
Locked Pages Allocated                            0
SM Reserved                                       0
SM Committed                                      0
SinglePage Allocator                       19419712
MultiPage Allocator                             128
Can you post complete DBCC MEMORYSTATUS output which was generated in errorlog. Is this the only message in errorlog or there are some more messages before and after it.
select (SUM(single_pages_kb)*1024)/8192 as total_stolen_pages, type
from sys.dm_os_memory_clerks
group by typeorder by total_stolen_pages desc
and
select sum(pages_allocated_count * page_size_in_bytes)/1024,type from sys.dm_os_memory_objects
group by type
If you can post the output of above two queries with dbcc memorystaus output on some shared drive and share location with us here. I would try to find out what is leaking memory.
You can very well apply SQL Server 2008 r2 SP3 and see if this issue subsides but I am not sure whether this is fixed or actually it is a bug.
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it
My Technet Wiki Article
MVP

Any software for Query Optimization?

Hi,
Is there any software to be used for query Optimization
Please help me

3rd party tools suck (if they did not Oracle would incorporate them in its optimizer long ago). The best tools are:
1. Gather table and index statistics
2. Use CBO (FIRST_ROWS, ALL_ROWS)
3. SQL*Plus AUTOTRACE
4. EXPLAIN PLAN
5. SET SQL_TRACE = TRUE + TKPROF
6. Statspack
7. Enterprise manager (new Ora10g, did not try it)
All from Oracle...

Regarding Query Optimization

Hi Gurus,
I am preparing for an interview. I need to know about Query Optimization, explain plan, Cost analysis.
Can anyone please give me some reference link or site where i can get step by step details for the above..
It would be really helpfull.
Thanks in advance..
Ameya.

RTFM [url http://oraclesvca2.oracle.com/docs/cd/B10501_01/server.920/a96533/toc.htm]Performance Tuning Guide and Reference

Is there an accurate query to provide list of all objects grown in the past between 2 intervals ?

Please Advice
I need accurate query to provide list of all objects grown in the past between 2 intervals as one provided in Doc ID 1395195.1 is not giving accurate results and DBMS_SPACE.OBJECT_GROWTH_TREND is not giving objects name
Kind Regards

user13778506 wrote:
Please Advice
I need accurate query to provide list of all objects grown in the past between 2 intervals as one provided in Doc ID 1395195.1 is not giving accurate results and DBMS_SPACE.OBJECT_GROWTH_TREND is not giving objects name
Kind Regards
only possible if you collect object sizes on a regular basis & store the details after each collection.
what unit of measure should be used to quantify the "growth"; rows, blocks, segment, extent?
Some might consider this level of detail to be symptomatic of Compulsive Tuning Disorder.

Aggregate Query Optimization (with indexes) for trivial queries

Table myTable, which is quite large, has an index on the month column.
"select max(month) from myTable" uses this index and returns quickly.
"select max(month) from myTable where 1 = 1" does not use this index, falls through to a full table scan, and takes a very long time.
Can this possibly be a genuine omission in the query optimizer, or is there some setting or another to convince it to perform the latter query more sanely?

Oracle 11.2.0.1
SQL> select table_name, num_rows from dba_tables where table_name = 'DWH_ADDRESS_MASTER';
TABLE_NAME                                 NUM_ROWS
DWH_ADDRESS_MASTER                        295729948
SQL> explain plan for select max(last_update_date) from DWH.DWH_ADDRESS_MASTER;
| Id | Operation                  | Name                   | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT           |                        |     1 |     8 |     4   (0)| 00:00:01 |
|   1 | SORT AGGREGATE            |                        |     1 |     8 |            |          |
|   2 |   INDEX FULL SCAN (MIN/MAX)| DWH_ADDRESS_MASTER_N1 |     1 |     8 |     4   (0)| 00:00:01 |
SQL> explain plan for select max(last_update_date) from DWH.DWH_ADDRESS_MASTER where 1 = 1;
| Id | Operation                   | Name                   | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT            |                        |     1 |     8 |     4   (0)| 00:00:01 |
|   1 | SORT AGGREGATE             |                        |     1 |     8 |            |          |
|   2 |   FIRST ROW                 |                        |     1 |     8 |     4   (0)| 00:00:01 |
|   3 |    INDEX FULL SCAN (MIN/MAX)| DWH_ADDRESS_MASTER_N1 |     1 |     8 |     4   (0)| 00:00:01 |
------------------------------------------------------------------------------------------------------

HFR - Data Query Optimization Settings

hi
In HFR, in a grid there are Data Query Optimization Settings, can you please help me on the settings property.
Our report fetches data using lot of attributes. When we don't use MDX setting, it fetches very fast, but the alias doesn't come.
However, when we use MDX setting, the alias comes, but the report takes lot of time to run(approx 1 min / row of data fetched)
Can you please guide on the same.
Thanks

pm wrote:
Hi ,
I am working on below query optimization/Tuning.
SELECT
c_date,
c1,
c2,
c3,
c4,
c5,
c6
FROM tab1
WHERE
ROWNUM <= &param
AND ( c_date BETWEEN &date1 AND &date2 )
AND c3 in (
select c3
from tab2
where xxx='abc')
ORDER BY c1, c_date;
Note : &param,&date1 ,&date2 are parameters runtime getting from UI code .
tab1 having huge data around 10lacs to crores. and it has range partition on c_date column and subpartiotion on c1 column.
To get best throughput in less time, what i need to do ?
Please do let me know steps to tune/optimize the sql query.Also which hint we can use on sql query to better results.
Thanks in advanced.
PMBefore you start worrying about performance tuning you should worry about the query being incorrect.
         WHERE
             ROWNUM <= &param
             AND   ( c_date BETWEEN &date1 AND &date2 )
             AND c3 in (
                                         select c3
                                         from tab2
                                         where xxx='abc')
         ORDER BY c1, c_date;Presumably you want to limit the number of rows with the ROWNUM predicate AFTER the ORDER BY clause is applied.
Please read this and learn how queries are actually processed, I can almost guarantee you this query is not doing what you think it is doing at present.
http://www.oracle.com/technetwork/issue-archive/2006/06-sep/o56asktom-086197.html
Cheers,

Autonomic Query Optimizer

Hi All,
I'm doing some bit of study on that portion of Query Optimizer in Oracle9i that is autonomic (I mean it is dynamic and a self learning one).Can anyone give me some pointers to this topic(In fact I doubt whether something like this at all exists, or is still a topic of research); I need some more info on this topic.Some papers or articles may be handy.
Greetings,
Kaustav Ghoshal

I think u mean CBO (Cost Based Optimizer). If your database is running in "choose" mode so yes, CBO will automaticly optimize your query.
Check the doc here : http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96533/part1.htm
Fred

Query optimization...provide thoughts..

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