Re: delete orphaned records in SQL

[rob@xxxxxxxxx]

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



_______________________________________________
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@midrange.com
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l
or email: MIDRANGE-L-request@midrange.com
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.