How to know exact query execution time.

Hi,
I want to know what is exact query execution time which excludes network access, constructing results. Please suggest me.
Thanks in advance,
Satish.G

Not sure I know what you really want, but if this is a testing phase sort of thing and you are running on unix, there is the time command.
If you want something that is part of your application, you can run a timer in a separate Thread - for approximate time.
If you want more precise time, you can use java.util.Date - it has a method getTime(), which you can use before processing and again after processing and subtract the former from the later.

Similar Messages

How to know the query execution time

Hi All,
I want to know the execution time taken for a particular query, How should i get that information ?
say for example,
select * from emp
after getting the result, i want to know the time taken for completing the execution.
How ?
Inputs are welcome !

BTW it was already written in a response to you yestreday:
Re: Query Plan
Gints Plivna
http://www.gplivna.eu

How to get the query execution time

Hi,
I am new to oracle and I am trying to get the execution time of a query.I tried the command set timing on and executed the query.But,the time it gives me is including the display of results.In my case,I ran a query against 50 million records and it is taking around 5 hours to display all the results.I like to know,how much time it take just to execute the query?Please help.
Thanks
Ravi.

Maybe this way ?
TEST@db102 SQL> set timing on
TEST@db102 SQL> set autotrace traceonly
TEST@db102 SQL> select * from foo;
332944 rows selected.
Elapsed: 00:00:29.04
Execution Plan
Plan hash value: 1245013993
| Id | Operation         | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |      |   274K|    46M| 1071   (5)| 00:00:13 |
|   1 | TABLE ACCESS FULL| FOO |   274K|    46M| 1071   (5)| 00:00:13 |
Note
   - dynamic sampling used for this statement
Statistics
        288 recursive calls
          0 db block gets
      26570 consistent gets
       4975 physical reads
          0 redo size
   35834383 bytes sent via SQL*Net to client
     244537 bytes received via SQL*Net from client
      22198 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
     332944 rows processed
TEST@db102 SQL>

How to reduce the query execution time

hai all,
We have created query on Purchasing Cube 0PUR_C01 for
                            Purchase Order (PO) analysis for single vendor materials, but it is taking long time to execute (about 45 sec...).
In the above Query we have used the following things:
In Columns:
i) Exceptional aggregation for maximum & minimum PO Net Price using reference characteristic as Calendar Day.
ii) Minimum PO Price value we have multiplied with Actual GR Quantity for the calculation of Impact of Lowest PO Net Price.
iii) Number of vendors calculated key figure.
In Rows:i)     Only Material
In Filters:
i)     Plant with variable select Option u2013 Optional.
ii)     Calendar Year / Month with Select Option u2013 Optional.
iii)     Material with excluded Unassigned (#).
iv)     Vendor with excluded Unassigned (#).
Following are we have used for Performance:
i)     Aggregates using Propose from query (only for this query).
ii)     Partitioning on Calendar Year / Month (For 1 year 14 partitions) i.e. (04.2007 to 03.2008).
iii)      Collapse.
iv)     In RSRT we have set the following properties
Read Mode = H
Req.Status = 0
Catch Mode = 4
Persistence Mode = 3 (BLOB)
Optimization mode = 0.
Our inputs to this Query:
i)     We are passing plant range 1201 to 1299.
ii)     Calendar Year / Month 04.2007 to 03.2008.
So please suggest me how to reduce the execution time.
please help me.
Thanks,
kiran manyam

Hi,
First of all its a complete question with all the details. Good work.
As you partitioned the cube based on calmonth and you are also giving calmonth in selection, it will definitely work towards improved query performance.
As you are putting plant values in the selection, is there any aggregate available on plant characteristics? If not creating a aggregate on plant will help.
Regards,
Yogesh

How to know child procedure Execution time with in parent procedure

Hi Team,
I've a requirement in which I need to get the execution time of a child procedure while its running in a parent procedure in PLSQL. While the child process is running, I want to know its execution time so that if it execution time exceeds more than 5 seconds than I want to through an error. Please let me know by what means this can be achieved in plsql.
Regards,
Tech D.

TechD wrote:
Hi Team,
I've a requirement in which I need to get the execution time of a child procedure while its running in a parent procedure in PLSQL. While the child process is running, I want to know its execution time so that if it execution time exceeds more than 5 seconds than I want to through an error. Please let me know by what means this can be achieved in plsql.
Regards,
Tech D.PL/SQL is NOT a Real Time programming language.
The procedure that invokes the child procedure is effectively dormant while the child runs.
Plus there is no easy way to know when 5 seconds has elapsed.

How to reduce this query execution time !

Just use your original cursor as an inline view, like so:
CREATE OR REPLACE PROCEDURE SP_TEST_audit_history2
(p_start IN date,
p_end IN date,
p_msgcode IN varchar2,
p_partnername IN varchar2,
p_status IN varchar2,
p_locationname IN varchar2,
p_custbusunit IN varchar2,
p_sysaudithistory_cur OUT plutotypes.ref_cursor,
p_status1 OUT NUMBER)
AS
BEGIN
OPEN p_sysaudithistory_cur
FOR
SELECT tfm.hubmsgid,
tfm.status || '-'|| nvl2 (tfm.exception_id, 'FAILED', 'OK'),
tfm.datetime,
tfm.exception_id
FROM tfm_status tfm,
(SELECT DISTINCT MAX (tfm.datetime) datetime, tfm.hubmsgid
FROM tfm_status tfm, vw_msgcode_part_locn vw
WHERE tfm.datetime >= NVL (p_start, TO_DATE ('01/01/1981', 'DD/MM/YYYY'))
AND tfm.datetime <= NVL (p_end, TO_DATE ('31/12/9999','DD/MM/YYYY'))
AND tfm.msgcode LIKE NVL (p_msgcode, '%')
AND vw.msgcode = tfm.msgcode
AND vw.partnername LIKE NVL (p_partnername, '%')
AND tfm.status LIKE NVL (p_status, '%')
AND vw.locationname LIKE NVL (p_locationname, '%')
AND vw.custbusunit LIKE NVL (p_custbusunit, '%')
AND rownum < 250
GROUP BY tfm.hubmsgid) c_hubmsgids
WHERE tfm.hubmsgid = c_hubmsgids.hubmsgid /* here only i am getting error*/
AND tfm.datetime = c_hubmsgids.datetime
AND tfm.status like NVL (p_status, '%');
p_status1 := 0;
EXCEPTION
WHEN NO_DATA_FOUND THEN p_status1 := 1;
END SP_TEST_audit_history2;
If i run this query it is taking 18 seconds to retrive the records becoz of that group by clause..
Can any body suggest any changed in code ( any hints) to make it faster that is execution time will be less than 10 seconds
Thanx in advance
prasanth a.s.

Try removing the word distinct and see if that helps. Distinct should not be needed since the max and group by will result in distinct values.

How Can I reduce Query Execution time with use of filter

Dear Experts,
In a query execution is faster when there is no product filter and these products can be a list contaning mare than 300 items.
I am using In operator for that filter.

Maybe if you posted the quer[y][ies] we could get a better idea.

How to reduce my query execution time?

Hi Friends,
One of my client asked me this question. " My query is taking long time to execute.So how do you reduce this time?" . I replied him saying some performance issues like creating aggregates( offcourse we have to balance the maintenance of it ), creating secondary indexe and cube copression and if possible Cube Partition etc.... I even explained query performance isuues like if possible use RRI, and minimise variables etc....
Can anybody tell me any other factors we can advise?..Anyway it depends on query too.
Thanks
Murthy

hi murthy,
SAP BW Query Performance Tuning with Aggregates:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/3f66ba90-0201-0010-ac8d-b61d8fd9abe9
SAP BW Query Performance Check List:
http://mysap.wordpress.com/2006/09/04/sap-bw-query-performance-check-list/
and you can find a lot of threads and related doc. in the forum itself
Re: Performance
Re: Performance analysis
Query Performance Is "Aggregates" the way out for me?
/people/vikash.agrawal/blog/2006/04/17/query-performance-150-is-aggregates-the-way-out-for-me
chk this:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/1955ba90-0201-0010-d3aa-8b2a4ef6bbb2
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/ce7fb368-0601-0010-64ba-fadc985a1f94
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/4c0ab590-0201-0010-bd9a-8332d8b4f09c
cheers
Sunil

How to know query execution time in sql plus

HI
I want to know the query execution time in sql plus along with statistics
I say set time on ;
set autotrace on ;
select * from view where usr_id='abcd';
if the result is 300 rows it scrolls till all the rows are retrieved and finally gives me execution time as 40 seconds or 1 minute.. (this is after all the records are scrolled )
but when i execute it in toad it gives 350 milli seconds..
i want to see the execution time in sql how to do this
database server 11g and client is 10g
regards
raj

what is the difference between .. the
statistics gathered in sql plus something like this and the one that i get from plan_table in toad?
how to format the execution plan I got in sqlplus in a proper understanding way?
statistics in sqlplus
tatistics
         0 recursive calls
         0 db block gets
       164 consistent gets
         0 physical reads
         0 redo size
     29805 bytes sent via SQL*Net to client
       838 bytes received via SQL*Net from client
        25 SQL*Net roundtrips to/from client
         1 sorts (memory)
         0 sorts (disk)
       352 rows processedexecution plan in sqlplus... how to format this
xecution Plan
0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=21 Card=1 Bytes=10
         03)
1    0   HASH (UNIQUE) (Cost=21 Card=1 Bytes=1003)
2    1     MERGE JOIN (CARTESIAN) (Cost=20 Card=1 Bytes=1003)
3    2       NESTED LOOPS
4    3         NESTED LOOPS (Cost=18 Card=1 Bytes=976)
5    4           NESTED LOOPS (Cost=17 Card=1 Bytes=797)
6    5             NESTED LOOPS (OUTER) (Cost=16 Card=1 Bytes=685)
7    6               NESTED LOOPS (OUTER) (Cost=15 Card=1 Bytes=556
8    7                 NESTED LOOPS (Cost=14 Card=1 Bytes=427)
9    8                   NESTED LOOPS (Cost=5 Card=1 Bytes=284)
10    9                     TABLE ACCESS (BY INDEX ROWID) OF 'USR_XR
         EF' (TABLE) (Cost=4 Card=1 Bytes=67)
11   10                       INDEX (RANGE SCAN) OF 'USR_XREF_PK' (I
         NDEX (UNIQUE)) (Cost=2 Card=1)
12    9                     TABLE ACCESS (BY INDEX ROWID) OF 'USR_DI
         M' (TABLE) (Cost=1 Card=1 Bytes=217)
13   12                       INDEX (UNIQUE SCAN) OF 'USR_DIM_PK' (I
         NDEX (UNIQUE)) (Cost=0 Card=1)
14    8                   TABLE ACCESS (BY INDEX ROWID) OF 'HDS_FCT'
          (TABLE) (Cost=9 Card=1 Bytes=143)
15   14                     INDEX (RANGE SCAN) OF 'HDS_FCT_IX2' (IND
         EX) (Cost=1 Card=338)
16    7                 TABLE ACCESS (BY INDEX ROWID) OF 'USR_MEDIA_
         COMM' (TABLE) (Cost=1 Card=1 Bytes=129)
17   16                   INDEX (UNIQUE SCAN) OF 'USR_MEDIA_COMM_PK'
          (INDEX (UNIQUE)) (Cost=0 Card=1)
18    6               TABLE ACCESS (BY INDEX ROWID) OF 'USR_MEDIA_CO
         MM' (TABLE) (Cost=1 Card=1 Bytes=129)
19   18                 INDEX (UNIQUE SCAN) OF 'USR_MEDIA_COMM_PK' (
         INDEX (UNIQUE)) (Cost=0 Card=1)
20    5             TABLE ACCESS (BY INDEX ROWID) OF 'PROD_DIM' (TAB
         LE) (Cost=1 Card=1 Bytes=112)
21   20               INDEX (UNIQUE SCAN) OF 'PROD_DIM_PK' (INDEX (U
         NIQUE)) (Cost=0 Card=1)
22    4           INDEX (UNIQUE SCAN) OF 'CUST_DIM_PK' (INDEX (UNIQU
         E)) (Cost=0 Card=1)
23    3         TABLE ACCESS (BY INDEX ROWID) OF 'CUST_DIM' (TABLE)
         (Cost=1 Card=1 Bytes=179)
24    2       BUFFER (SORT) (Cost=19 Card=22 Bytes=594)
25   24         INDEX (FAST FULL SCAN) OF 'PROD_DIM_AK1' (INDEX (UNI
         QUE)) (Cost=2 Card=22 Bytes=594)

Reducing query execution time

how can we reduce query execution time?which methods we have to follow to optimization?

which methods we have to follow to optimization?First, read this informative thread:
How to post a SQL statement tuning request HOW TO: Post a SQL statement tuning request - template posting
and post the relevant details we need.
Execution plans and/or TRACE/TKPROF output can help you identifying performance bottlenecks.

How to get query execution time without running...?

Hi ,
I had one requirement .... as follows ......
i had 3 sql statements . I need to execute only one sql which execution time is very less.
Can any one help me , how to get query execution time without running that query and without using explain plan..?
Thanks,
Rajesh

Kim Berg Hansen wrote:
But you have ruled out explain plan for some reason, so I cannot help you.OP might get some answers if query was executed before - but since restart. Check V$SQL dynamic performance view for SQL_TEXT = your query. Then ROUND(ELAPSED_TIME / EXECUTIONS / 1000000) will give you average elapsed time.
SY.
Edited by: Solomon Yakobson on Apr 3, 2012 8:44 AM

How can I reduce BEx Query execution time

Hi,
I have a question regarding query execution time in BEx.
I have a query that takes 45 mins to 1 hour to execute in BEx analyser. This query is run on a daily basis and hence I am keen to reduce the execution time. Are there any programs or function modules that can help in reducing query execution time?
Thanks and Regards!

Hi Sriprakash,
1.Check if your cube is performance tuned: in the manage cube from RSA1 / performance tab: check if all indexes and statistics are green. Aggregate IDx should as well be.
2.Condense your cubes regularly
3. Evaluate the creation of an aggregate with all characteristic used in the query (RSDDV).
4.Evaluate the creation of a "change run aggregate": based on a standalone NavAttr (without its basic char in the aggr.) but pay attention to the consequent change run when loading master data.
5. Partition (physically) your cubes systematically when possible (RSDCUBE, menu, partitioning)
6. Consider logical partitioning (by year or comp_code or ...) and make use of multiproviders in order to keep targets not too big...
7.Consider creating secondary indexes when reporting on ODS (RSDODS)
8.Check if the query runtime is due the master data read or the infoprovider itself, or the OLAP processor and/or any other cause in tx ST03N
9.Consider improving your master reads by creating customized IDX (BITMAP if possible and depending on your data) on master data table and/or attribute SIDs when using NAvs.
10.Check that your basis team did a good job and have applied the proper DB parameters
11.Last but not least: fine tune your datamodel precisely.
hope this will give you an idea.
Cheers
Sunil

Oracle View that stores the Query execution time

Hi Gurus
i m using Oracle 10G in Unix. I wudiold like to know which Data dictionary view stores the execution of a query. If it is not stored then hw to find the query execution time other than (Set timing on) command. What is the use of elapsed time and what is the difference between execution time and elapsed time? How to calculate the execution time of a query.
THanks
Ram

If you have a specific query you're going to run in SQL*Plus, just do
a 'set timing on' before you execute the query.
If you've got application SQL coming in from all over the place, you can
identify specific SQL in V$SQL/ and look at ELAPSED_TIME/EXECUTIONS
to get an average elapsed time.
If you've got an application running SQL, and you need to know the
specific timing of a specific execution (as opposed to an average),
you can use DBMS_SUPPORT to set trace in the session that your
application is running in, and then use TkProf to process the resulting
trace file.

Identifying query execution time

Hello,
I would like to know how can I figure out the actual query execution time in Oracle.
Regards

Oracle Documentation is your best friend.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2113.htm#i1417057
ELAPSED_TIME --> Elapsed time (in microseconds) used by this cursor for parsing, executing, and fetching
Asif Momen
http://momendba.blogspot.com

How to know exact size of table with blob column

I have a table with one BLOB column. I ran this query.
select bytes/1024/1024 from user_segments where segment_name='GMSSP_REQUEST_TEMP_FILES'
(user_segments is a view)
it gave me 0.125
It means size of table is 0.125. I have uploaded 3 files to this table. Each of them is of 5 mb. After that I check size of table. but result was same. i.e 0.125.
Can any body tell me how to know exact amount of space consumed by files. I am expecting following result
size should be (5+5+5+0.125)MB
Any help is appreciated.
Thanks.
Akie

http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/statviews_1092.htm#i1581211
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:266215435203#993030200346552097

How to know exact query execution time.

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