>Novice question about MS SqlServer.
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>I have an application which uses what I call an "overloaded" table. By that I mean that it contains columns of relational key ID's that can relate to different tables depending on another definitive field in the table. For example, x1_ID relates the record to an Invoice header if the xntype field value is "CHARGE" or "PAYMENT" but if the xntype field value is "INVRECEIVE", x1_ID relates the record to a Purchase Order Header record.
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>This structure has worked well for me for several years in VFP but I have been told that it is not allowed in a SQL Server table. Have I been misinformed or have I been misusing this capability in VFP ?
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>Thanks,
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>Ken

It's not allowed in SQL Server - you will not be able to set up pk/fk relationship correctly. I suggest to re-think this model.