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Microsoft« ActiveX« Data Objects (ADO) enable your client applications to access and manipulate data in a database server through any OLE DB provider.
ADO
ADO supports key features for building client/server and Web-based applications. Its primary benefits are ease of use, high speed, low memory overhead, and a small disk footprint.
To learn more about ADO, see Welcome to ADO. Please see the Microsoft Web page for ADO 2.0 Release Notes at http://www.microsoft.com/data/ado.
ADO MD
ADO MD extends ADO to include objects specific to multidimensional data, and allows you to browse multidimensional schema, query a cube, and retrieve the results.
To learn more about ADO MD, see ADO MD Overview. Please see the Microsoft Web page for ADO MD Release Notes at http://www.microsoft.com/data/ado.