Data Folder: save SQL files to this folder.
Encoding: file encoding.
DB Type: Access / DB2 / DBF / MySQL / Oracle / PostgreSQL / SQL Server / SQLite.
Map Columns For Similars Files: if the source items is similar, you can set it to True, to show column-mapping grid, then you can select columns, set destination column names.
Select All: select all columns.
Select None: select none columns.