May 2002
Beginner
408 pages
9h 10m
English
Content preview from Sams Teach Yourself ADO.NET in 24 Hours
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Hour 8
Quiz Answers
| 1: | True or false: There is little overhead associated with the DataReader object. |
| A1: | True. There is never any more than one database record in memory while the DataReader is open and retrieving data. This makes it very lightweight compared to the DataAdapter, particularly when a large number of records are being returned. |
| 2: | What is the key difference between the DataReader and DataAdapter? |
| A2: | The DataAdapter stores the results of a database query into a DataSet object. The DataReader opens a pipe directly from the database to the data's destination. |
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.