Since v2.6.0

Sets that all BDE, ZeosDB, dbExpress, ADO components must be deleted when DAC for MySQL ones are created.

Syntax:

property DeleteSourceComponents: Boolean;

Description:

If set to True all TTable, TQuery and so on components will be deleted from project. In other case they will be left on the form or datamodule. However, datasources and fields descriptions will be detached from there and moved to the DAC for MySQL replacement.

You may want to left BDE, ZeosDB, dbExpress, ADO components to check correctness of the migration process manually.