---
title: "Standard Data Stream Protocol | Microsoft Docs"
ms.custom: ""
ms.date: 11/14/2018
ms.prod: sql
ms.prod_service: connectivity
ms.reviewer: ""
ms.technology: 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]"
ms.assetid: 1d234d17-2927-4c98-9fae-550c1370f829
author: David-Engel
ms.author: v-daenge
---
# 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](https://www.iso.org/iso/catalogue_detail.htm?csnumber=30615). Although the ANSI/ISO system shows promise, it is not widely implemented today.