High Quality Content by WIKIPEDIA articles! Microsoft's ActiveX Data Objects is a set of Component Object Model objects for accessing data sources. A part of MDAC, it provides a layer between programming languages and OLE DB. ADO allows a developer to write programs that access data without knowing how the database is implemented. You must be aware of your database for connection only. No knowledge of SQL is required to access a database when using ADO, although one can use ADO to execute SQL commands. The disadvantage of this is that it introduces a dependency upon the type of database used. It is positioned as a successor to Microsoft's earlier object layers for accessing data sources, including RDO and DAO. ADO was introduced by Microsoft in October 1996.

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