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    Question Question What is the difference between data reader & data set
    Answer Answer DataReader is connected object and one can process the rows that are returned by query, one at a time. It discards every row after you have gone through it and so it is extremely fast.It contains only read-only data, so no updates are allowed using DataReader objects.

    In DataReader you can not get the no. of records directly from RecordSet.This is similar to VB 6, ForwardOnly RecordSet.

    Meanwhile DataSet is disconnected object type.It uses XML to store data


    Data reader is much faster then dataset if only selection query is their

    1)DataReader is used in connected architecture while DataSet is used in disconnected architecture with DataAdapter. 2)As DataReader is forward only we can't edit in it,but in dataset we can. 3)DataReader is comparetively faster than DataSet.

    Answered By: Ankita Jain    Date: 4/21/2008

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