From .NET, if I use OleDb to access VFP data, I will not get the same result. From VFP, the following SQL find the related records, thus returning all records having DBUsers.Name starting with D:

SELECT DBUsers.AI AS FTNumero FROM DBUsers WHERE UPPER(DBUsers.Name)=UPPER("D")

But, through OleDb, this returns 0 record. If I don't put any condition, I can see that all records area being returned. So, the problem is related to the way the condition is made. Can anyone explain this difference with OleDb?