Create Table As Select Does Not Copy Table's Default Values.
(Doc ID 579636.1)
Last updated on AUGUST 14, 2018
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 to 22.214.171.124 [Release 8.1.7 to 11.2]
Information in this document applies to any platform.
This problem can occur on any platform.
If you use CTAS ( Create Table As Select ) to copy a table, the new duplicate table does not contain the default values of the original table. As a result, if you use DBMS_REDEFINITION.COPY_TABLE_DEPENDENTS, it does not copy column's default values.
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