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Date: Thu, 11 Aug 2005 03:15:36 +0200 (CEST)
From: "David Van Couvering (JIRA)" <derby-dev@db.apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-171) Need Correlation ID in UPDATE/DELETE
 statements
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     [ http://issues.apache.org/jira/browse/DERBY-171?page=all ]

David Van Couvering updated DERBY-171:
--------------------------------------

    Fix Version: 10.1.1.1
        Version: 10.1.1.1
                     (was: 10.0.2.0)

> Need Correlation ID in UPDATE/DELETE statements
> -----------------------------------------------
>
>          Key: DERBY-171
>          URL: http://issues.apache.org/jira/browse/DERBY-171
>      Project: Derby
>         Type: Improvement
>   Components: SQL
>     Versions: 10.1.1.1
>  Environment: Windows XP SP1 Professional
>     Reporter: George Baklarz
>     Assignee: Rick Hillegas
>      Fix For: 10.1.1.1
>  Attachments: bug171.diff, bug171.html
>
> You currently can't use a correlation ID in an UPDATE/DELETE statement. This makes it cumbersome to do the following:
> UPDATE EMPLOYEE_BONUS
>   SET BONUS = (SELECT SUM(BONUSES.BONUS) FROM BONUSES WHERE 
>           EMPLOYEE_BONUS.EMPL_ID = BONUSES.EMPL_ID);
> The use of a correlation ID makes this easier to code.
> UPDATE EMPLOYEE E
>   SET BONUS = (SELECT SUM(B.BONUS) FROM BONUSES B WHERE B.EMPL_ID = E.EMPL_ID);
> This is particularly important if you get carried away with long SCHEMA and TABLE names!

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