Performance Issue With Fem_pk_notnull.sql for Oracle Enterprise Performance Foundation (EPF) R12 Upgrade from R11 (Doc ID 1090926.1)

Last updated on APRIL 30, 2010

Applies to:

Oracle Enterprise Performance Foundation - Version: 12.0.4 and later   [Release: 12 and later ]
Information in this document applies to any platform.

Symptoms

When upgrading from 11.5.10.2 to 12.0.4, the upgrade step which runs the fem_pk_notnull.sql is taking many hours to run due to the large number of records in FEM_BALANCES.  However, a previous step, fem_femd.odf seems to be causing the issue by setting several columns to NULL which are then re-updated to NOT NULL by the fem_pk_notnull.sql.

EXPECTED BEHAVIOR
Expect the upgrade does not waste time updating the same table columns from NOT NULL to NULL then back to NOT NULL.

STEPS
The issue can be reproduced at will with the following steps:
1. Follow the instructions in the Oracle´┐Ż Applications Upgrade Guide: Release 11i to Release 12.0.4, Release 12.0.4, Part No. E12011-02 documentation.
2. Use AutoPatch to run the (American English) unified driver (u6394500.drv)

Cause

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