I usually add a FOR !EOF(tablename) with tablename being the table the values are coming from the make sure that I don't stomp on records that don't have a correlating record in the other table.

PS, I like your tag, but true insanity is getting different results each time.

>>I'm trying to build a query which will update one table with values from another, matching on primary keys. It's very simple in ACCESS using an INNER JOIN with an UPDATE. I haven't been able to get it to work in VFP. Can it be done?
>>
>>Thanks!
>
>Nope.
>What can be done, though, is to use a SET RELATION between the tables and a REPLACE ALL. This works very fast.
>
>e.g. This will update the UpdateMe table from values in SourceTable
>where the primary keys match.
>

>Use SourceTable Order idPK
>Select 0
>Use UpdateMe
>Set Relation To idPK Into SourceTable
>Replace All field1 With SourceTable.field1, ;
>            field3 With SourceTable.field2, ;
>            etc., etc. ;
>    For !EOF("SourceTable")