ORA-30647: error retrieving access parameters for external table string.string
Cause: an error occurred when fetching the access parameters for the specified external table.
Action: If the access parameter is a query which returns a CLOB, check EXTERNAL_TAB$ to make sure the query is correct.
Cause: an error occurred when fetching the access parameters for the specified external table.
Action: If the access parameter is a query which returns a CLOB, check EXTERNAL_TAB$ to make sure the query is correct.
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