4. What is the difference between Dataset and Datareader?

What is the difference between Dataset and Datareader?

Answer

DataReader Dataset
Datareader has read only access to the data and it is set to be forward only. Dataset can hold more than one table from the same data source. It even stores relationships between tables.
Datareader cannot persist contents as it is read only Dataset can persist contents
Datareader is connected architecture Dataset is disconnected architecture

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