C++ search in MDB table

We need to change a C++ application for a very simple functionality. At the moment the EXE search with a filter panel into a table (in an MDB file) called "tbl_documenti". We need to add a check box to choose from option 1 and option 2. Option 1 search inside tbl_documenti (like today) Option 2 search inside tbl_documenti_scarti a new table that is in the same MDB file. The filters (to create the WHERE conditions) are the same. We give the source and an example of the exe/mdb. We need the source changed back.