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ActiveX Data Objects

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Microsoft ADO (ActiveX Data Objects) is an COM object for accessing data sources. It provides a layer between programming languages and databases, which allows a developer to write programs which access data, without knowing how the database is implemented. No knowledge of SQL is required to access a database when using ADO.

ADO consists of several top-level objects:

Connection (represents the connection to the database)
Recordset (represents a set of database records)
Command (represents a SQL command)
Record (represents a set of data, typically from a source other than a database)
Stream (represents a stream of data, as from a text file or web page)
Error (stores errors)
Field (represents a database field)
Parameter (represents a SQL parameter)
Property (stores information about objects)
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