dbms_system.set_sql_trace_in_session

dbms_system.set_sql_trace_in_session

We have a slow running query, which hangs for 30 seconds or so when run via an application using the JDBC driver.

When the same query is run in SQLPLUS it takes less than a second.

Thus, using the dbms_system procedure above, I turned on follow-up to the session.

While tracing is enabled, the system executes this query in a second, and the application works as expected.

So my question is:

What defines the plsql procedure, that could affect the ongoing request for enforcement?

Your call to the dbms_system activates the SQL Trace. Do not use dbms_system; Use dbms_monitor instead:

https://docs.Oracle.com/CD/B28359_01/AppDev.111/b28419/d_monitor.htm#i1003679

Maybe you're whitnessing this phenomenon:

http://www.Oracle.com/technetwork/issue-archive/2008/08-Jan/o18asktom-090158.html

see you soon

Tags: Database

Similar Questions

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SQL*Plus: Release 11.2.0.1.0 Production on Mon Jul 11 17:00:34 2011

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

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With the Partitioning, Automatic Storage Management, OLAP, Data Mining
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---------- ----------
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---------- ---------- --------- ---------- --------- ---------- ----------
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----------
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---------- ---------- --------- ---------- --------- ---------- ----------
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    Aman...

    Published by: Aman... July 11, 2011 17:08
    Edit added

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