Using Database Components in Data Modules
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Note: The Borland Database Engine (BDE) has been deprecated, so it will not be enhanced. For instance, BDE will never have Unicode support. You should not undertake new development with BDE. Consider migrating your existing database applications from BDE to dbExpress.
You can safely place database components in data modules. If you put a data module that contains a database component into the Object Repository, however, and you want other users to be able to inherit from it, you must set the HandleShared property of the database component to True to prevent global name space conflicts.