Re: delete orphaned records in SQL

Test with a select first.  And if you can't comma the fields together, try
concatenating.

Rob Berendt
--
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
Benjamin Franklin



                    "Richard B Baird"
                    <rbaird@esourceconsu       To:     midrange-l@midrange.com
                    lting.com>                 cc:
                    Sent by:                   Fax to:
                    midrange-l-admin@mid       Subject:     delete orphaned 
records in SQL
                    range.com


                    03/08/2002 08:22 AM
                    Please respond to
                    midrange-l






hey all,

I want to write an sql statement to delete orphaned records from a detail
file (as relates to the header).

the files have a multi-field key relationship.  it's several key fields,
but I'll reduce to two for examples sake.

can I do something like this?

delete
  from detailfile
 where (dkey1, dkey2) in
       (select dkey1, dkey2
          from detailfile exception join
               headerfile
            on dkey1 = hkey1 and
               dkey2 = hkey2)

Thanks,

rick



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