# 2490 TEDBQuery Not Working as a DataSetProvider for TClientDataSet

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I am just getting started on a new application and I was wanting to use the TClientDataSet, TDataSetProvider and the EDBQuery & EDBUpdateSQL.

Basically all that I have done is:

1. Put down a TClientDataSet, TDataSetProvider & TEDBQuery
2. Set the SQL property on the EDBQuery & Open the query
3. Set the DataSet property of the DataSetProvider to point to the Query
4. Set the ClientDataSet.Provider.Name to the name of the Provider

When I open the ClientDataSet I am told there is a 'Catestophic Failure' (as far as I have been able to work out, the DataSetProvider is trying to send a NULL back)

The other thing is, that if I change the TEDBQuery for a TEDBTable, and keep eveything else the same....then everything works, and I get data in the ClientDataSet.