You can generate trace information for a given session by turning SQL_TRACE on, running the SQL statement(s) you...
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
want to trace and then turning SQL_TRACE off. The results of your trace will be stored in the /udump directory (USER_DUMP_DEST init.ora parameter). You can then use a utility called TKPROF to format the trace file into something a bit more readable.
Here's how it would look from SQL*Plus:
SQL> alter session set SQL_TRACE=TRUE; SQL> select emp_no, lastname from emp where lastname = 'SMITH' ; SQL> alter session set SQL_TRACE=FALSE;
From the command prompt:
/uo1/oracle/admin/udump> tkprof ora_instance_1234.trc trace.txt
If you need a guide to follow and a place to get more info, see the Oracle document: Oracle8i Designing and Tuning for Performance, Chapter 6. There are also other tracing/tuning options described in that chapter that may be of help.
For More Information
- What do you think about this answer? E-mail the editors at editor@searchDatabase.com with your feedback.
- The Best Oracle Web Links: tips, tutorials, scripts, and more.
- Have an Oracle or SQL tip to offer your fellow DBAs and developers? The best tips submitted will receive a cool prize. Submit your tip today!
- Ask your technical Oracle and SQL questions -- or help out your peers by answering them -- in our live discussion forums.
- Ask the Experts yourself: Our SQL, database design, Oracle, SQL Server, DB2, metadata, object-oriented and data warehousing gurus are waiting to answer your toughest questions.
Dig Deeper on Oracle and SQL
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.