| Connection-Oriented Scenario:- 1.Always accessing current data
 2.Low number of concurrent data accesses
 3.Many write accesses situation
 4.IDbConnection, IDbCommand, IDataReader
 
 Disconnected Scenario:
 1.Modification in Dataset is not equal to modification in data source
 2.Many concurrent read accesses situation
 3.Dataset, Data table, DbDataAdapter
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