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Why is OleDbDataAdapter needed?

Everything is possible with the OleDBDataRea开发者_StackOverflow中文版der class. ExecuteReader() for SELECT statements, and ExecuteNonQuery() for DELETE, UPDATE and INSERT statements.

So why is OleDbDataAdapter class needed?


From OleDbDataAdapter Class

Represents a set of data commands and a database connection that are used to fill the DataSet and update the data source.

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