>Fabio,
>
>>You cannot do it with the structural CDX (those open implicitly)
>>because, as for the file memo the name is implicit: tablename.cdx
>>
>>But, you can do it with a not structural cdx.
>
>Thank you - that's exactly the solution I was looking for!
>
>Malcolm

Keep in mind that ALL such "IDX" files must be opened with the table in order to be updated if you change any of the data involved in the indexed expressions.