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From "Anonymous (JIRA)" <j...@apache.org>
Subject [jira] Commented: (TORQUE-45) Generated SQL is in wrong order when dropping tables on table re-creation
Date Mon, 17 Jul 2006 11:41:16 GMT
    [ http://issues.apache.org/jira/browse/TORQUE-45?page=comments#action_12421585 ] 
            

> So how are tables with circular references dropped? 
In some databases, there is the "cascade constraints" option to thge "drop table" command
which drops the constraints associated with the dropped table. 
In other databases, I assume one would have to drop the constraints first and then the tables.

> Generated SQL is in wrong order when dropping tables on table re-creation
> -------------------------------------------------------------------------
>
>                 Key: TORQUE-45
>                 URL: http://issues.apache.org/jira/browse/TORQUE-45
>             Project: Torque
>          Issue Type: Bug
>          Components: Generator
>    Affects Versions: 3.2, 3.1.1
>         Environment: java 1.4.2, 1.5. Solaris 10.
>            Reporter: Joe Carter
>
> When the table creation SQL is re-run when the schema contains foreign keys, you will
get referential integrity complaints.
> This is because the table drop order means that it tries to drop dependent tables first.
> To fix this, the drop statements should be before all the creates. They should also be
in reverse order to the creates.
> A method to be able to obtain the tables in reverse order will be needed to allow the
templates to be modified to fix this.

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