ADO Database Delphi

Question:
What restrictions are there on the MSACCESS driver?
Answer:
BCD (binary coded decimal) support is not available.
Key violation tables cannot be created with DbiAddIndex.
(All other DbiAddIndex functionality is supported.)
QBE, heterogeneous queries, and queries using the local SQL
engine are not supported.
In the SDK, DbiDoRestructure and DbiRegenIndex are not
available.
Opening a table when TTable.Exclusive is set to True
prevents the user from opening that table again, even in
same session.