Re: Multiple update statements

The way that is written I think you would get a failure. Just a thought,
because there are no SQL terminators in that, so to the server it looks like
one long query string. But I could be wrong about that.

On Fri, Oct 9, 2009 at 1:36 PM, Strumyla, Marius <[email protected]>wrote:

> I'm maintaining someone else's code. Application is written in PHP with
> MS SQL database. Driver installed is FreeTDS 0.64. Platform Solaris 10
> x86.
>
> I came across this query:
> mssql_query("UPDATE user_project SET membership=43 WHERE project=49 AND
> usernum=2UPDATE user_project SET membership=0 WHERE project=49 AND
> usernum=9UPDATE user_project SET membership=0 WHERE project=49 AND
> usernum=10UPDATE user_project SET membership=0 WHERE project=49 AND
> usernum=12UPDATE user_project SET membership=0 WHERE project=49 AND
> usernum=14UPDATE user_project SET membership=0 WHERE project=49 AND
> usernum=15UPDATE user_project SET membership=0 WHERE project=49 AND
> usernum=16")
>
> What is interesting is that records that don't exist are inserted :) If
> I had an empty user_project table, after the execution of the above
> query I would have 7 new records in user_project.
>
> I would like to know whether this is expected and documented somewhere.
>
> Thanks
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>



-- 

Robert Gonzalez
http://www.robert-gonzalez.com