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ORA-39726 or ORA-904 When Dropping Column After Table Was Compressed (Doc ID 1288918.1)

Last updated on FEBRUARY 02, 2022

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 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 Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

An ORA-39726 can be seen when a table is COMPRESSED FOR OLTP, uncompressed, and columns are dropped.   The drop statement generates the ORA-39726.

If the columns to be dropped have been set to "unused," then the drop statement will generate an ORA-904.

Changes

Table was compressed and then uncompressed.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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