Regarding SQL trace
Hi all,
I want to run a SQL trace for processing of CREMAS IDOC's ( custom Functional module) and i want to see which all tables or SQL statement is taking more time .
Can you tell me procedure to run SQL trace.
HI,
Here are the 2 good links
http://publib.boulder.ibm.com/tividd/td/ITMAN/SC32-9195-00/en_US/HTML/sap_add06.htm
http://help.sap.com/saphelp_webas610/helpdata/en/d1/8022e5454211d189710000e8322d00/content.htm
Well using SQL trace
like as follows:
Goto transaction ST05. Press TRACE ON.
Execute your transaction .
Come back to this screen and click TRACE OFF.
Then check the trace details.
You end up getting unnecessary details
Lets say you have to analyze your particular SQL query,
1. put a breakpoint at the select statement and execute the transaction , as it stops at your breakpoint , run SQL trace in seperate session.
2. Trace ON
3. Execute the select statement.
4. Trace OFF
5. Analyze.
In this way you can analyze your particular select query
Pls check links like:
http://help.sap.com/saphelp_nw04/helpdata/en/17/358df9c9fee2469105731e10756921/frameset.htm
http://help.sap.com/saphelp_bw30b/helpdata/en/d1/801f89454211d189710000e8322d00/frameset.htm
http://www.sapbrain.com/TOOLS/SQLTRACE/SQL_TRACE.html
SQL Trace
SQL trace (ST05) provides the developer with the ability to analyze database select statements. Simply execute ST05 to turn on SQL trace, then execute the statement/program you want to analyze. Now turn off SQL trace using ST05
And click on list trace to view the details.
Authorization trace analysis
1. Open two sessions
2. Execute transaction ST01 in one of the sessions
3. Select the authorization checkbox, note the other traces
you can perform (SQL, RFC, Table Buffer etc)
4. Click the 'Trace On' button
5. Within your other session execute the transaction/report
you want to trace or get the user in question to do it
6. Return to the session where you turned the trace on and
click on 'Trace Off' otherwise it will continue to record all authorization checks
7. Click on the 'Analysis' button
8. Enter appropriate data into selection screen such as
Username, type of trace records (i.e. Authorization check)
9. Click on the Execute button.
10. Report displaying trace results will now be displayed
GO THROUGH THIS
Tools provided for Performance Analysis
Following are the different tools provided by SAP for performance analysis of an ABAP object
Cheers,
Simha.
Similar Messages
-
In SQL Trace how to see which statement getting more time .
Hi Expart,
In SQL Trace (T-code ST05) . I am running the standard transaction . how to see which statement
running more time and less time . suppose one statement running more time so how resolve the
performance .
Plz. reply me
Regards
Razz> The ones in 'RED' color are the statement which are taking a lot of time and you need to
> optimise the same.
No, that is incorrect, the red ones show only the ones which need several hundret milliseconds in one execution. This can even be correct for hard tasks. And there are lots of problem, which you will not see
I have said everything here:
SQL trace:
/people/siegfried.boes/blog/2007/09/05/the-sql-trace-st05-150-quick-and-easy
Go to 'Tracelist' -> Summarize by SQL statements', this is the view which you want to see!
I summarizes all executions of the same statement.
There are even the checks explained, the slow ones are the one which need a lot of time per record!
See MinTime/Rec > 10.000 microseconds.
Check all number of records, executions, buffer, identicals.
The SE30 Tipps and Tricks will not help much.
Siegfried -
Hi All,
I am new to this ABAP field..
I know how to do SQL trace ....But what I am not getting is " <b>HOW CAN WE TELL FROM THE OUTPUT OF SQL TRACE, THAT THIS IS THE CAUSE OF SLOW PERFORMANCE OF A REPORT</b>" Based on what are we determining the performance?
Can Anybody help me here pls?............
KellyHi Kelly,
if you really have no idea, why a report is slow, then you have to start with SE30 (runtime analysis).
There are three bargraphs: ABAP / database / system.
System should be more or less nothing.
If ABAP is bigger than database: have a look at slow abap-statements (normally operations with internal tables: read, delete, loop where,...); classic reason: to much reads without binary search / sorted table / hashed table use.
If database is bigger than ABAP: have a look at your SQL statements. If you can see already forgotten key fields, fine - otherwise SQL trace will bring help in analyzing.
A SQL trace itself says nothing about overall performance (which is done by runtime analysis), only about database part. But 'normally' programmers have their ABAP-part in control and struggle only with slow selects: that's the reason, why often SQL trace is used immediately.
I hope, this brings a little bit light in your question,
regards,
Christian -
Analysing details of SQL trace and runtime analysis for a report.
Hi,
I am trying to tune the performance of a Z ABAP report for target group export. A brief overview of what is done in the report is the retrieval of BP details present in the Target group including BP general, address, marketing attributes, person responsible and contact person details. As the target groups can be quite huge (around 6000 BPs), the report gives performance issues. I want to understand on how to analyse the details which I obtained from the run time analysis and SQL trace and on how to take it forward.
Any inputs in this regard would be helpful.
Thanks in advance,
AnushreeIn Runtime analysis Look for
ABAP - In your ABAP code
DATABASE - It shows the performance of your SELECT statements in your program.
Just check how much % it is showing for both.
Check for following in your code.
1) Avoid SELECT *
2) Clear internal tables values which are not required at the ending of program, as it saves memory
etc. -
Unable to generate SQL trace file on a 10.2.0.1.0 database
Hello,
I am unable to generate SQL trace files on a 10.2.0.1.0 database (OS is Win2003 server 64 bits).
First I tried the way I used to do it on older databases (8i and 9i) :
execute dbms_system.set_sql_trace_in_session(sid, serial#, true);
I got no error, but no file was created in the user dump dest directory.
Then I've been searching and I've tried other things :
- I changed the user_dump_dest parameter
- I changed the tracefiles_public parameter value to "true", by modifying the init.ora file
- I tried another package :
exec dbms_monitor.session_trace_enable(139)
Nothing worked, I can't create any trace file...
Does anyone have an idea about this issue ?
thank you for you help !
AntoineHello,
thank you all for replying.
I have 2 instances on this machine, and I've just realized that with the other one I have no problem to generate sql trace files as usual.
But why the hell is it impossible on the first instance ? What difference between the 2 instances can explain this ?
This is pretty weird...
Otherwise I am experiencing serious performance problems on the instance where I can't creat trace files, there must be something wrong with it, but I can't figure it out
regards,
Antoine -
What is SQL Trace and How to Use it .
Dear Experts .
1.) May You Please tell me What is the Purpose of SQL-Trace and How to use it ?
2.) What is purpose of T-codes SE30 and ST22 ?
Please it is urgent ...
Regards : RajneeshHi
SQL Trace transaction ST05: The trace list has many lines that are not related to the SELECT statement in the ABAP program. This is because the execution of any ABAP program requires additional administrative SQL calls. To restrict the list output, use the filter introducing the trace list.
The trace list contains different SQL statements simultaneously related to the one SELECT statement in the ABAP program. This is because the R/3 Database Interface - a sophisticated component of the R/3 Application Server - maps every Open SQL statement to one or a series of physical database calls and brings it to execution. This mapping, crucial to R/3s performance, depends on the particular call and database system. For example, the SELECT-ENDSELECT loop on a particular database table of the ABAP program would be mapped to a sequence PREPARE-OPEN-FETCH of physical calls in an Oracle environment.
The WHERE clause in the trace list's SQL statement is different from the WHERE clause in the ABAP statement. This is because in an R/3 system, a client is a self-contained unit with separate master records and its own set of table data (in commercial, organizational, and technical terms). With ABAP, every Open SQL statement automatically executes within the correct client environment. For this reason, a condition with the actual client code is added to every WHERE clause if a client field is a component of the searched table.
To see a statement's execution plan, just position the cursor on the PREPARE statement and choose Explain SQL. A detailed explanation of the execution plan depends on the database system in use.
Run time analysis transaction SE30 :This transaction gives all the analysis of an ABAP program with respect to the database and the non-database processing.
STEPS
Run time analysis transaction SE30
In Transaction SE30, fill in the transaction name or the program name which needs to be analyzed for performance tuning.
For our case, let this be ZABAP_PERF_TUNING
After giving the required inputs to the program, execute it. After the final output list has been displayed, PRESS the BACK button.
On the original SE30 screen, now click on ANALYZE button.
The percentage across each of the areas ABAP/ Database/System shows the percentage of total time used for those areas and load on these areas while running the program . The lesser the database load faster the program runs.
SQL Trace ST05
Starting the Trace:
To analyze a trace file, do the following:
Choose the menu path Test Performance Trace in the ABAP Workbench or go to Transaction ST05. The initial screen of the test tool appears. In the lower part of the screen, the status of the Performance Trace is displayed. This provides you with information as to whether any of the Performance Traces are switched on and the users for which they are enabled. It also tells you which user has switched the trace on.
Using the selection buttons provided, set which trace functions you wish to have switched on (SWL trace, enqueue trace, RFC trace, table buffer trace).
If you want to switch on the trace under your user name, choose Trace on. If you want to pass on values for one or several filter criteria, choose Trace with Filter.
Typical filter criteria are: the name of the user, transaction name, process name, and program name.
Now run the program to be analyzed.
Stopping the Trace:
To deactivate the trace:
Choose Test Performance Trace in the ABAP Workbench. The initial screen of the test tool appears. It contains a status line displaying the traces that are active, the users for whom they are active, and the user who activated them.
Select the trace functions that you want to switch off.
Choose Deactivate Trace. If you started the trace yourself, you can now switch it off immediately. If the performance trace was started by a different user, a confirmation prompt appears before deactivation-
Analyzing a Sample trace data: PREPARE: Prepares the OPEN statement for use and determines the access method.
OPEN: Opens the cursor and specifies the selection result by filling the selection fields with concrete values.
FETCH: Moves the cursor through the dataset created by the OPEN operation. The array size displayed beside the fetch data means that the system can transfer a maximum package size of 392 records at one time into the buffered area. -
Generate Sql Trace in oracle reports
Hi,
My Reports version is 10.1.2.0.2 and I would like to see the trace files of the sql queries that are executed while generating a report using rwbuilder.
I tried using a Formula column, with
SRW.DO_SQL('ALTER SESSION SET SQL_TRACE=TRUE');
return(1);
Also, I enable system level trace to capture anything and everything that is being fired into DB from reports.
I tried,
ksh rwthinclient.sh report=$REPORT_FILE_PATH/Journal.rdf server=$REPORT_SERVER userid=$ORAUSERID/$ORAPASSWD@$REPORT_DATABASE destype=cache desformat=pdf TRACEFILE=ver1.trc TRACEOPTS=trace_all TRACEMODE=trace_replace RUN_DATE=$CurDate;
I do not get trace at all. Kindly help me out.Hi,
Maybe have a look at this MOS note: Running SQL*Trace on an Applications Report [ID 1019231.6]
Regards Peter -
Hello,
I am a Software Engineer using Oracle 9i Client. We have a website which is using ASP at front-end,Oracle as a back-end and some dll which is created in VC++. This dll will interact with oracle. When the ASP pages gets executed, it will execute the dll which in turn execute the oracle SQL's. So, I want to see SQL statements which are executed in Oracle. This type of feature is available in MS SQL Server 2000 tool called Profiler.
Thanks
Golak Saha
Software EngineerHi,
Maybe have a look at this MOS note: Running SQL*Trace on an Applications Report [ID 1019231.6]
Regards Peter -
Hi
Can anyone suggest how to find the SQL trace for background jobs.
Thanks in advance.
Regards
D.VadivukkarasiHi
Check the transaction ST05.
Plz Reward Points if helpful -
I need to capture bind values in SQL Trace. I am running Oracle 9.2.0.8. I will be running my queries from an application, not SQL Plus. I can use a after log on trigger to turn on trace. Has anyone done this with success? Are there any other ways to do this at the server level?
Thank you for your input
DavidHello David,
it is such easy ... you wouldn't believe it.
Have a look at the pl/sql procedure "dbms_system.set_ev", with this one you can do this on session level: http://www.oracleadvice.com/Tips/dbms_system.htm#SET_EV
There are also some other possibilities... but this should hit your question..
To turn on:
SQL> exec dbms_system.set_ev(<SID>, <SERIAL>, 10046, 12, '');
To turn off:
SQL> exec dbms_system.set_sql_trace_in_session(<SID>, <SERIAL>, FALSE);
Regards
Stefan -
Plz help me to understand sql trace
Hi,
i need your help to understand the sql trace and where exactly i should concentrate,
i am also going through docs,
your help is appreciated,
select count(rep)
from
(select /*+ leading(v1 v2) use_nl_with_index(v2) */ count(v1.val) rep from
(select rn, val from (select rownum rn, val from (select /*+ no_merge
no_parallel(t) no_parallel_index(t) dbms_stats cursor_sharing_exact
use_weak_name_resl dynamic_sampling(0) no_monitoring */"FFPR_FFAMS_ID" val
from sys.ora_temp_1_ds_108308 t where "FFPR_FFAMS_ID" is not null group by
"FFPR_FFAMS_ID" having count("FFPR_FFAMS_ID") = 1)) where ora_hash(rn) <=
273538662) v1, (select /*+ index(t2) */ "FFPR_FFAMS_ID" val from
"DM_FM_REPORTING_OWNER"."FM_FP_PLAN_RESULTS" t2) v2 where v2.val = v1.val
group by v1.val having count(v1.val) <= 2)
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 1 0.00 0.29 0 8131 0 1
total 3 0.00 0.30 0 8131 0 1
Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 213 (recursive depth: 1)
select /*+ no_parallel_index(t,"FFPR_FFAMS_FK_I") dbms_stats
cursor_sharing_exact use_weak_name_resl dynamic_sampling(0) no_monitoring
no_expand index(t,"FFPR_FFAMS_FK_I") */ count(*) as nrw,count(distinct
sys_op_lbid(692895,'L',t.rowid)) as nlb,count(distinct "FFPR_FFAMS_ID") as
ndk,sys_op_countchg(substrb(t.rowid,1,15),1) as clf
from
"DM_FM_REPORTING_OWNER"."FM_FP_PLAN_RESULTS" t where ("FFPR_FFAMS_ID" is not
null) and (TBL$OR$IDX$PART$NUM("DM_FM_REPORTING_OWNER"."FM_FP_PLAN_RESULTS",
0,4,0,"ROWID") = :objn)
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 1 0.00 2.56 0 425 0 1
total 3 0.00 2.56 0 425 0 1
Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: ALL_ROWS
Parsing user id: 213 (recursive depth: 1)
select /*+ no_parallel_index(t,"FFPR_FFAMS_FK_I") dbms_stats
cursor_sharing_exact use_weak_name_resl dynamic_sampling(0) no_monitoring
no_expand index(t,"FFPR_FFAMS_FK_I") */ count(*) as nrw,count(distinct
sys_op_lbid(692895,'L',t.rowid)) as nlb,count(distinct "FFPR_FFAMS_ID") as
ndk,sys_op_countchg(substrb(t.rowid,1,15),1) as clf
from
"DM_FM_REPORTING_OWNER"."FM_FP_PLAN_RESULTS" t where "FFPR_FFAMS_ID" is not
null
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 1 0.00 2.56 0 427 0 1
total 3 0.00 2.56 0 427 0 1
Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 213 (recursive depth: 1)
select /*+ no_parallel_index(t,"FFPR_PK_I") dbms_stats cursor_sharing_exact
use_weak_name_resl dynamic_sampling(0) no_monitoring no_expand index(t,
"FFPR_PK_I") */ count(*) as nrw,count(distinct sys_op_lbid(692907,'L',
t.rowid)) as nlb,null as ndk,sys_op_countchg(substrb(t.rowid,1,15),1) as
clf
from
"DM_FM_REPORTING_OWNER"."FM_FP_PLAN_RESULTS" t where ("FFPR_ID" is not null
or "FFPR_PLAN_NAME" is not null) and
(TBL$OR$IDX$PART$NUM("DM_FM_REPORTING_OWNER"."FM_FP_PLAN_RESULTS",0,4,0,
"ROWID") = :objn)
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 1 0.00 1.51 847 857 0 1
total 3 0.00 1.52 847 857 0 1
Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: ALL_ROWS
Parsing user id: 213 (recursive depth: 1)
select /*+ no_parallel_index(t,"FFPR_PK_I") dbms_stats cursor_sharing_exact
use_weak_name_resl dynamic_sampling(0) no_monitoring no_expand index(t,
"FFPR_PK_I") */ count(*) as nrw,count(distinct sys_op_lbid(692907,'L',
t.rowid)) as nlb,null as ndk,sys_op_countchg(substrb(t.rowid,1,15),1) as
clf
from
"DM_FM_REPORTING_OWNER"."FM_FP_PLAN_RESULTS" t where "FFPR_ID" is not null
or "FFPR_PLAN_NAME" is not null
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 1 0.00 1.26 0 850 0 1
total 3 0.00 1.27 0 850 0 1
Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 213 (recursive depth: 1)
OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
call count cpu elapsed disk query current rows
Parse 13 0.00 0.03 0 0 0 0
Execute 13 0.00 1.32 43 242 29 9
Fetch 4 0.00 0.00 0 0 0 4
total 30 0.00 1.36 43 242 29 13
Misses in library cache during parse: 4
OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
call count cpu elapsed disk query current rows
Parse 2945 0.00 1.04 0 0 0 0
Execute 3741 0.00 5.49 3137 12995 7050 203362
Fetch 3088 0.00 38.42 3344 39486 27 9811
total 9774 0.00 44.96 6481 52481 7077 213173
Misses in library cache during parse: 284
Misses in library cache during execute: 160
144 user SQL statements in session.
2814 internal SQL statements in session.
2958 SQL statements in session.Regards
nicHi,
i did the homework, but some how i dont seem to understand what oracle is doing behind
esp with hints like
select /*+ leading(v1 v2) use_nl_with_index(v2) */ count(v1.val)
/*+ no_parallel(t) no_parallel_index(t) dbms_stats
cursor_sharing_exact use_weak_name_resl dynamic_sampling(0) no_monitoring
substrb(dump(min("XXX"),16,0,32),1,120),
substrb(dump(max("XXX"),16,0,32),1,120),i havent used this things any where in my program, but still they are used,
so i got confused, can you throw some light on this issue,
regards
nic -
I'm not sure if this is possible but I'm looking to retrieve a running total of the number of rows processed by the OLAP option without polling the "longops" dynamic management view. As such, is it possible to set a SQL Trace running but rather than spooling the results to a file, return them over the JDBC connection for the client application to interpret? (I am naturally assuming here that it is possible to get this "running information" from a SQL trace for a given session ID. If not, the question is moot I guess...
I am using 11.1.0.7.0.
Thanks for any help.Hi
Whether if you use Sender or Receiver communication channel, SAP PI always open the connection to remote server. That is, SAP PI is always the component client, therefore the only thing you should to open is the MS SLQ port.
Regards
Ivá -
Hi,
I am aware that SQL*Trace can be used from SQL*Plus.
Is it possible to use SQL Trace from TOAD, I want to enable user trace for the
TOAD session and use TOAD command, and see the underlying metadata views and other
information TOAD refers to fetch the results/output, thank you.Yes. The requirements and "How to" are listed here :
http://www.toadworld.com/Portals/0/ToadTechPapers/Creating%20and%20Analyzing%20Trace%20Files%20with%20Toad%20for%20Oracle.pdfBest Regards
mseberg -
Hi all,
Can I run an SQL trace on a background job?and how?
I tried with ST05 it was not showing any tables through which it is moving?
Thanks in advance.
Regards,
RajaTry SE30
Give the user name and program name if you are aware.
Reward if helpful -
SQL TRACE/TKPROF VS SQL ACCESS ADVISOR
Hi All,
Can anyone please tell me what's the exact difference between SQL TRACE/TKPROF and SQL ACCESS ADVISOR in Oracle 10g.(By showing some examples)
And also why should I go for SQL ACCESS ADVISOR ?? (Since I have used the former all these days) :)
Why can't I still use SQL TRACE/TKPROF.
Please if anyone can pour light on this. Thanks in Advance.
Regards,
Marlon.Better go through below link........
http://www.remote-dba.net/oracle10g_tuning/t_sqlaccess_advisor.htm_
-Ek
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