9. Understanding .NET Data Provider Connectivity : IngresDataReader Object--Retrieve Data from the Database
 
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IngresDataReader Object--Retrieve Data from the Database
The .NET Data Provider provides the IngresDataReader object to retrieve a read-only, forward-only stream of data from an Ingres result-set created by a SELECT query or row-producing database procedure. Using the IngresDataReader increases application performance and reduces system overhead because only one row of data at a time is in memory.