Logon Trigger Fails with ORA-30511 (Doc ID 742698.1)

Last updated on DECEMBER 25, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.2 to 10.2.0.4 [Release 10.1 to 10.2]
Information in this document applies to any platform.




Symptoms

Intermittently, connections to the database fail with:

ORA-00604: error occurred at recursive SQL level 1 
ORA-30511: invalid DDL operation in system triggers 

The errorstack trace reveal the operation as:

Current SQL statement for this session:
drop index "USR1"."BIN$U6HGLdiME8/gQCoBFBhVAg==$0"

Cause

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