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Chapter 17. ADO and OLE DB > ADO and OLE DB

17.3. ADO and OLE DB

As we have seen, the DAO model is the programming interface for the Jet database engine. On the other hand, ADO has a more ambitious goal—it is the programming model for a universal data access interface called OLE DB. Simply put, OLE DB is a technology that is intended to be used to connect to any type of data—traditional database data, spreadsheet data, Web based data, text data, email data, and so on.

Technically speaking, OLE DB is a set of COM interfaces. An interface is just a collection of functions, also called services, with a similar purpose. The term COM refers to the Component Object Model , which is Microsoft's model for communication between software components. Thus, simply put, OLE DB is a set of functions or services.


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