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Two types of COM objects are necessary for consumers to connect to providers: data source objects and session objects.
To connect to an OLE DB provider, a consumer must first create and initialize an instance of the provider's data source object. This data source object can then be used to create a session object, which in turn acts as a factory for transactions, commands, and rowsets. The primary function of a session is to define a transaction. A transaction is a mechanism used to define persistent units of work within a provider and to define how the different units relate to one another in a system with parallel activities.
For more information about |
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Data providers, consumers, and service components |
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Transactions |
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OLE DB connection models |
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Data source object |
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Session object |
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Rowsets |
This section contains the following topics: