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What are the differences between Dataset and DataReader?
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Answer Posted / eduardo belmonte
A ds (dataset) can be used when the connection is closed.
A dr (datareader) needs the connection open to be used.
A ds can be used to modify or delete or insert data in the
database.
A data reader can be used only to read data
A ds can let you access the info on any order at any time.
A dr lets you access the info only one time per item and
only in a sequential order.
A ds data can be loaded in longer time than a dr can be
loaded at.
A ds can contain separated and structured data from several
database tables.
A dr can contain data in one register per item, that
register can include data from serveral tables id the sql
select statement so indicates, but it has no separate
structure per table.
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