The ____ object is a specialized object that creates a read-only session with the database to retrieve data sequentially (forward only)in a very fast manner.
A) Command
B) DataReader
C) DataAdapter
D) DataSet

Question

Quizplus · Accepted Answer

The specialized object that creates a read-only session with the database to retrieve data sequentially in a very fast manner is the DataReader object. The Command object executes a query or a stored procedure, the DataAdapter fills a DataSet with data, and the DataSet is an in-memory representation of retrieved data. Only the DataReader allows for fast sequential reading of data. So, the best choice is B) DataReader.

The ____ Object Is a Specialized Object That Creates a Read-Only