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                              WORKLOG TASK
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TASK...........: DELETE with result set
CREATION DATE..: Thu, 30 Jun 2011, 14:13
SUPERVISOR.....: 
IMPLEMENTOR....: 
COPIES TO......: 
CATEGORY.......: Server-RawIdeaBin
TASK ID........: 205 (http://askmonty.org/worklog/?tid=205)
VERSION........: WorkLog-4.0
STATUS.........: Un-Assigned
PRIORITY.......: 60
WORKED HOURS...: 0
ESTIMATE.......: 40 (hours remain)
ORIG. ESTIMATE.: 40

PROGRESS NOTES:



DESCRIPTION:

Add a DELETE operations that returns a result set of the deleted rows to the client.

Suggested syntax:

The DB2 syntax:

DELETE from (SELECT column_list from single_table WHERE ... ORDER BY)

another option would be

DELETE FROM table_name WHERE ... [LIMIT #]] SELECT expression_list

but I think that the first syntax is more clear.
It's also easier to expand it to handle multiple tables.

Oracle supports the following syntax:

DELETE <table or expression> <alias> WHERE <where_clause> RETURNING <exprs> INTO
<data_items>

but this is not useful as it can only be used to record single row deletes.


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