This information is currently not available in the TOracleDataSet. The TOracleQuery has a RowsProcessed property, so if possible you should use this component to execute explicit update or delete statements.
The TOracleDataSet has a protected InternalQuery function. If you derive your own (dummy) TOracleDataSet descendant, you can access this function to obtain the RowsAffected.
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Marco Kalter
Allround Automations