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Re: SSE 2008: Trigger: Modifying Data to be Written

Cross-posted to 2 groups.

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Gene Wirchenko wrote:
> Dear SQLers:
>
>     How do I modify the data that is going to be written to a table?
>
>     I understand that this data is in a logical table called
> inserted, but that this data can not be modified.  I really would like
> to.
>
>     I want to put a filter in between to clean up the data.  The
> procedure that I posted recently that cleans up strings would be
> useful here.  I would like to invoke this in the trigger.
>
>     For example, with my table Accounts, if ACName is entered as
>          "   Account     Name    "
> I would like this to be cleaned up to
>          "Account Name"
> and the latter value be the one written to the table.
>
>     Since I can not write to the inserted logical table, I do not
> know how to do this.
>
>     One idea is to disallow application write access to Accounts,
> have a shadow table that is written to and in its trigger, process its
> rows and write accordingly to Accounts.  This seems rather
> complicated.  I hope that there is a better way.
>
> Sincerely,
>
You can use an INSTEAD OF trigger - see Books OnLine 

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SSE 2008: Trigger: Modifying Data to be Written Gene Wirchenko <genew@ocis.net> - 2011-04-08 15:11 -0700
  Re: SSE 2008: Trigger: Modifying Data to be Written "Bob Barrows" <reb01501@NOSPAMyahoo.com> - 2011-04-08 18:44 -0400
    Re: SSE 2008: Trigger: Modifying Data to be Written Gene Wirchenko <genew@ocis.net> - 2011-04-08 16:23 -0700
      Re: SSE 2008: Trigger: Modifying Data to be Written Erland Sommarskog <esquel@sommarskog.se> - 2011-04-09 11:22 +0200
        Re: SSE 2008: Trigger: Modifying Data to be Written Gene Wirchenko <genew@ocis.net> - 2011-04-09 21:29 -0700
          Re: SSE 2008: Trigger: Modifying Data to be Written Erland Sommarskog <esquel@sommarskog.se> - 2011-04-10 14:48 +0200
            Re: SSE 2008: Trigger: Modifying Data to be Written Gene Wirchenko <genew@ocis.net> - 2011-04-11 09:46 -0700
          Re: SSE 2008: Trigger: Modifying Data to be Written "Bob Barrows" <reb01501@NOSPAMyahoo.com> - 2011-04-10 08:54 -0400
            Re: SSE 2008: Trigger: Modifying Data to be Written Erland Sommarskog <esquel@sommarskog.se> - 2011-04-10 21:33 +0200
            Re: SSE 2008: Trigger: Modifying Data to be Written Gene Wirchenko <genew@ocis.net> - 2011-04-11 09:42 -0700
              Re: SSE 2008: Trigger: Modifying Data to be Written "Bob Barrows" <reb01501@NOyahooSPAM.com> - 2011-04-11 14:55 -0400
                Re: SSE 2008: Trigger: Modifying Data to be Written Gene Wirchenko <genew@ocis.net> - 2011-04-11 14:53 -0700
                Re: SSE 2008: Trigger: Modifying Data to be Written "Bob Barrows" <reb01501@NOSPAMyahoo.com> - 2011-04-11 18:49 -0400

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