xBase and other file-system DB drivers should implement table and column restrictions in the connection string so that critical information can be absolutely hidden from users. Modern DBs like SQL Server allow fine-grained table and field permissions on a per user basis. Older file-system based DBs (e.g. FoxPro) lack these controls and putting a modern ODBC driver over them results in 100% of their data becoming available without restriction. This is VERY hard to work around at the application layer when your goal is to make non-sensitive data widely available. The DevArt drivers should allow for a block-list in the connection string so that specific tables or table-fields can be excluded, with ODBC errors arising if any of these fields are ever specifically requested.