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From "Guy Davis (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DDLUTILS-75) Add support for "On Delete" and "On Update" in schema XML for foreign keys
Date Tue, 11 Apr 2006 18:13:21 GMT
     [ http://issues.apache.org/jira/browse/DDLUTILS-75?page=all ]

Guy Davis updated DDLUTILS-75:
------------------------------

    Attachment: delete_cascade.patch

Patch supports ON DELETE cascade for foreign keys.

> Add support for "On Delete" and "On Update" in schema XML for foreign keys
> --------------------------------------------------------------------------
>
>          Key: DDLUTILS-75
>          URL: http://issues.apache.org/jira/browse/DDLUTILS-75
>      Project: DdlUtils
>         Type: Improvement

>  Environment: Oracle 10g Express Edition
> Windows XP
> Java 1.5.0
> Ant 1.6.5
>     Reporter: Guy Davis
>     Assignee: Thomas Dudziak
>     Priority: Critical
>  Attachments: delete_cascade.patch
>
> Currently, when dumping the schema from a live database to XML, the 'on delete' and 'on
update' rules for foreign keys are ignored.  As shown in the DTD for database.dtd (below),
the attributes onDelete and onUpdate should translate into "on delete cascade" for example
in the target SQL.
> <!ELEMENT foreign-key (reference+)>
> <!ATTLIST foreign-key
>   foreignTable CDATA #REQUIRED
>   name CDATA #IMPLIED
>   onUpdate (cascade|setnull|restrict|none) "none"
>   onDelete (cascade|setnull|restrict|none) "none"
> >
>  
> If the dump (DatabaseToDdl) is modified to write these attributes out, then the schema
load (DdlToDatabase) needs to handle them and set the correct behavior on the foreign key
creation.

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