>SET EXACT OFF
>? LOOKUP(F1,'A'+SPACE(1000),F1) && <-- WITH EXACT OFF IT NOT FOUND
>* for set soft you get a hard comparison
>SET EXACT on
>? LOOKUP(F1,'A'+SPACE(1000),F1) && <-- WITH EXACT ON IT FOUND
>* for set hard you get a soft comparison
>
>* but if you define a INDEX
>INDEX ON f1 tag TAG1
>? LOOKUP(F1,'A'+SPACE(1000),F1) && <-- USE INDEX AND IT NOT FOUND