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DataReader vs. DataSet

Posted Date: 03 Sep 2008 Resource Type: Articles Category: Web Applications

Posted By: Geetha Member Level: Gold
Rating:

Points: 5

DataReader
1) The data retrieved through a DataReader is read-only.
2) A DataReader lasts as long as the connection to the database is open. It can’t be persisted in a cookie or a session variable. Data Reader is connection oriented.
3) A DataReader is faster than a Dataset.
4) Data in a DataReader can be read forward only.
5) Can’t update a data source through a DataReader.

DataSet
1) The data retrieved through a DataSet is read and write.
2) A DataSet lasts only until the page is reloaded unless it’s somehow persisted (ex:in a session variable). Dataset is not connection oriented.
3) A DataSet is slower than a DataReader.
4) Data in a Dataset can be read in both forward and backward direction.
5) Can make changes to data in a DataSet and then upload those changes back to the data source.

Responses

Author: Venkat 17 Sep 2008

Member Level: Silver Points : 1

nice one.
But if you give some example with this means which should be very easy to understand

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