Roger, If you really just want to continue on and don't care that it is null, you can use the ifnull or coalesce function. You end up with something like: select field1, field2, ifnull(field3,' ') from filea left join fileb on filea.field1 = fileb.field1 That will ruturn a blank for a null value. If that is not OK, then you need to code an indicator area. An indicator area is an array of 2 byte integers. A negative 1 indicates a null value. I don't have an example handy right now, but if you need one I can post one later. David Morris
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