My Oracle Support Banner

HowTo validate a date/timestamp column (Doc ID 976591.1)

Last updated on NOVEMBER 01, 2023

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 9.2 to 12.2]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


Goal of this document is to validate all date/timestamp values of a specific column in specific table
(check will be done on partial content of timestamp: up till the second part of the timestamp value (a timestamp value will always contain a value up till the second part but can be longer))

Problem in question was hitting an ora-1877 while no information was shown which row/column was the cause of the error. Using an event on the error(errorstack on 1877) did not write a useful tracefile from which the row could be identified (only trace header information).

Further checking made clear that a timestamp column was the cause of the ora-1877, but it was impossible to find the exact rowid (next rowid after last rowid as shown at failure was not the row causing the ora-1877: SQL> select rowid,<column_name> from <table_name>).


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.