My Oracle Support Banner

In a Distributed Query, ORA-1555 Can Appear on the Remote DB Even When Query Duration is Small (Doc ID 560983.1)

Last updated on DECEMBER 27, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

This problem can occur on any platform.

Symptoms

When dealing with ORA-01555 in a distributed environment, if the error appears on a remote node, the query duration can sometimes be very low, especially when compared to the undo_retention for that node. This could appear as an incorrect behavior, be it from the error perspective or from the query duration perspectiv, but is actually correct.

Cause

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
Symptoms
Cause
Solution
References


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