Fabio why did you expected 0 the array contains one row

? _TALLY, "Expected ",ALEN(zz,1)

Marcel


Because the SELECTs search a

NULL not in ( NULL )
and
NULL <> ALL ( NULL )

and these conditions have to return NULL (unknow),
a condition that skip the row.

The cause is the Optimization.
VFP optimize the search with a temp index

The seek into a temp index return .F.
then the NOT condition return .T..

Fabio