ORA-00955 During drop nested table column and add the column back on table with compress oltp
(Doc ID 2289289.1)
Last updated on MARCH 12, 2021
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 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
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
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If you are using nested compress table and trying to drop and add same column you will get ORA-00955 error.
Internally when we drop column it is marking as unused and then executing drop unused column.
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