Odbcapp.exe is a full ODBC and SQL Server application that accesses SQL Server data directly and more efficiently than the techniques implemented by the wrapper DLL. The ODBC application accesses data in the three normalized tables (titles, publishers, and sales), taking advantage of the relational model provided by SQL Server. Odbcapp.exe also uses several of the performance-enhancing features of SQL Server such as indexes, default result sets and stored procedures to process result sets.