Howie Hamlin wrote:
> I have a basic MSSQL7 question - we have a table with no unique identifier (don't 
> ask - I didn't design it) where, on an insert, we want to update a record if it 
> exists and insert it if it doesn't.  The record can be identified only by a 
> combination of columns.  For example - 
> 
> select a,b,c,d,e,f from sometable where ...

Maybe it is time to create a composite primary key so you can enfore a 
unique identifier. Something like:
ALTER TABLE sometable
        ADD CONSTRAINT sometable_pkey PRIMARY KEY (a,b,c,d,e,f)

For the trigger, why not a stored procedure? I find instead of triggers 
quite a cludge.

Jochem

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