>>In an array, I have a definition of the fields of my table. So, the first row contains all the field names. When I use ASCAN to find a specific field name, it will locate the proper row. However, assuming I want to search for field name NOM and that I have another field NOMEMBER which is placed before NOM in the array, NOMEMBER will be found before NOM. How can I force ASCAN to be precise?
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>I guess you are talking about VFP 6 because in VFP 7 ASCAN has a parameter to control exact comparison.

Yes, it is VFP6. Good to hear that VFP7 will take care of that.

>1. When You create array pad field names to the MAXLEN and than ASCAN(myarray, PADR(filedname, MAXLEN))

Well, the array is created with AFIELD, so it can't be applied.

>2. Write FOR loop to scan thru array and do exact comparison using == operator.

What I did was to add SET EXACT ON before ASCAN and SET EXACT OFF after.