ORA-00955 During drop nested table column and add the column back on table with compress oltp

(Doc ID 2289289.1)

Last updated on AUGUST 18, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.

Symptoms

If you are using nested compress table and trying to drop and add same column you will get ORA-00955 error.

Changes

Internally when we drop column it is marking as unused and then executing drop unused column.

Cause

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