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Posted to derby-dev@db.apache.org by "Anjana (JIRA)" <ji...@apache.org> on 2015/11/26 13:44:11 UTC

[jira] [Created] (DERBY-6843) Altering the Identity columns rules

Anjana created DERBY-6843:
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             Summary: Altering the Identity columns rules 
                 Key: DERBY-6843
                 URL: https://issues.apache.org/jira/browse/DERBY-6843
             Project: Derby
          Issue Type: Bug
          Components: Tools
    Affects Versions: 10.12.1.1, 10.11.1.1
         Environment: CENTOS
            Reporter: Anjana


We do export of from one derby database to another. Our database defined identity type as ''GENERATED ALWAYS" Due to which the import does not consider the identity column value from the export file. 

Our requirement is to import those identity column values as well. 
As per understanding one of the option in derby is to create table with identity type as "GENERATED BY DEFAULT" . However need to understand if there is alternative in derby where in we can modify the identity type before import to ''GENERATED by DEFAULT" and then after import is successfully change it back to "GENERATED ALWAYS". 

Appreciate if any one can guide on same. 



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