My Oracle Support Banner

ORA-01426: Numeric Overflow After Downgrade From 11g (Doc ID 1308137.1)

Last updated on FEBRUARY 28, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.1 to 11.2]
Information in this document applies to any platform.


After downgrading from 11g to, compiling and dropping materialized views may generate an ORA-1426.  Turning off query rewrite lets some queries against tables complete, but compiling and/or dropping the mviews still fails with ORA-1426.

The compile of the materialized view showed this errorstack:
ksesec0 kprcdt kprccu opifcr qerstRowP qersoFetch

The select count(*) from <table> showed this errorstack:
ksesec0 kprcdt kprccu opifcr qersoFetch opifch2 opiall0 opikpr opiodr


Database was upgraded from to; then downgraded to


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.