General Data Source Support

The following figure shows the three classes that support connecting to and accessing a data source. Each class is based on a standard OLE DB component implementation, as described in the OLE DB Programmer's Reference.

The classes are:

• CDataSource   Represents the data source component. It manages the connection to a data source.
  
  
• CEnumerator   Provides a way to select a provider from a list of available providers. It is equivalent to the SQLBrowseConnect or SQLDriverConnect function.
  
  
• CSession   Handles transactions. For each session, you can create rowsets, commands, and other objects.

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