PLSQL 11.2.0.1 / 11.2.0.2: Running Anonymous PLSQL Block on RDBMS 11.2.0.1 or 11.2.0.2 on AIX may Show Performance Loss up to 30% Compared to 11.1.0.7 and Lower (Doc ID 1378094.1)

Last updated on FEBRUARY 01, 2012

Applies to:

PL/SQL - Version: 11.2.0.1 to 11.2.0.2 - Release: 11.2 to 11.2
Information in this document applies to any platform.

Symptoms

After upgrading database from previous database releases to RDBMS 11.2.0.1 or 11.2.0.2, execution of anonymous PL/SQL  blocks containing queries may show up performance loss of 30% on AIX platform

Cause

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