ORA-01758 When Adding IDENTITY Column Creates Anyway A System Generated Sequence
(Doc ID 1960560.1)
Last updated on AUGUST 23, 2021
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 and later
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 Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
On 220.127.116.11 database version.
When attempting to add IDENTITY column to a table with data, the following error occurs and the sequence is created anyway.
Steps to reproduce:
The issue can be reproduced at will with the following steps:
1. create a table
2. populate the table with data
3. add the identity primary key column
Due to this issue, users cannot create an identity columns on existing tables with data in it.
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In this Document