Finding a record in a TADOTable

I would like to be able to find a record in a TADOTable based on an index. The only thing I have found in this regard is the Seek method but this appears to require a number of other properties to be set and is supposedly supported only with a few RDBMSs. The other possibility is the Locate/Lookup set. Is there really no way to use the indices of a TADOTable to find a record ? It would seem natural that any table would allow one to use an index to quickly find a record in the table, else what purpose do indices serve.
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