Data Access
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General
The Data Access Layer is the tier of an application, where the actual sources are connected. In opposite to the Data Abstraction Layer, where the developer interacts with the data model on a higher level of abstraction, the data access usually encompasses not only information about the data sources but also about the means of connection like driver details.
Microsoft
Microsoft offers several types of data access components (Microsoft Data Access Components – MDAC), which compound of
- ADO
- OLEDB
- ODBC