ORA-01555 On OMS End-user Query With Zero Duration

(Doc ID 2266987.1)

Last updated on MAY 21, 2017

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


Multiple ORA-01555 in alert log for the target database
Issue is generated by the following SQL which is run from OMS - Top activity page:

ORA-01555 caused by SQL statement below (SQL ID: f467srusn1ktk, Query Duration=0 sec, SCN: 0x0a20.2a429ec3):


 Monitoring user accessing Top Activity page on autorefresh


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