title Standard Data Stream Protocol description Standard Data Stream Protocol author David-Engel ms.author davidengel ms.date 11/14/2018 ms.service sql ms.subservice connectivity ms.topic conceptual helpviewer_keywords ODBC [ODBC], database access SQL [ODBC], database access database access [ODBC] data stream protocol [ODBC] standardizing database access [ODBC], data stream protocol standard data stream protocol [ODBC] Standard Data Stream Protocol A standard data stream protocol is one way to access data in heterogeneous DBMSs. In fact, a standard data stream protocol already exists: The ANSI/ISO Remote Database Access (RDA) standard: ISO/IEC 9579:2000. Although the ANSI/ISO system shows promise, it is not widely implemented today.