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VB.Net - Database Access
Applications communicate with a database, firstly, to retrieve the data stored there and present it in a user-friendly way, and secondly, to update the database by inserting, modifying and deleting data.
Microsoft ActiveX Data Objects.Net (ADO.Net) is a model, a part of the .Net framework that is used by the .Net applications for retrieving, accessing and updating data.
ADO.Net Object Model
ADO.Net object model is nothing but the structured process flow through various components.
The object model can be pictorially described as −
The data residing in a data store or database is retrieved through the data provider. Various components of the data provider retrieve data for the application and update data.
An application accesses data either through a dataset or a data reader.
Datasets store data in a disconnected cache and the application retrieves data from it.
Data readers provide data to the application in a read-only and forward-only mode.
Data Provider
A data provider is used for connecting to a database, executing comma
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