Answer Posted / umarali1981
DataTable:
1.Meaning: A DataTable is an in-memory representation of a
single database table which has collection of rows and columns
2.Number of rows retrieved at a time:DataTable fetches only
one TableRow at a time
3.Provision of DataRelation Objects:As DataTable is a single
database table, so there is no DataRelation object in it.
4.Enforcing Data Integrity:In DataTable, there is no
UniqueConstraint and ForeignKeyConstraint objects available.
5.DataSource can be Serialized or Not:In DataTable,
DataSource cannot be serialized.
6.To know the example for DataTable, please try the URL:
http://www.dotnetperls.com/datatable
DataSet:
1.Meaning:A DataSet is an in-memory representation of a
database-like structure which has collection of DataTables.
2.Number of rows retrieved at a time:DataSet can fetch
multiple TableRows at a time
3.Provision of DataRelation Objects: In DataSet, DataTable
objects can be related to each other with DataRelation objects.
4.Enforcing Data Integrity:In DataSet, data integrity is
enforced by using the UniqueConstraint and
ForeignKeyConstraint objects.
5.DataSource can be Serialized or Not:DataSet is serialized
DataSource .That is why web services can always returns
DataSet as the result but not the DataTables.
6.To know the example for DataSet, please try the URL:
http://www.dotnetperls.com/dataset
Reference:
http://onlydifferencefaqs.blogspot.in/2012/08/difference-between-datatable-and-dataset.html
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