April 2002
Beginner
413 pages
10h 46m
English
Content preview from Sams Teach Yourself Visual C++® .NET in 24 Hours
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Hour 20
| 1: | While your application is running and a connection has been made to a data source, what happens if you delete the data source from the file system while you are navigating records? What about inserting or deleting records? |
| A1: | Nothing happens. The database file is not locked, so you can delete it. You can add and delete records because you are just interfacing with a DataSet. However, once you attempt to update the data source with the new DataSet, an exception will be thrown because the file cannot be found. |
| 2: | Do you need a database to create datasets, tables, and records within the .NET Framework? |
| A2: | No, you can create an entire database during runtime using the .NET Framework classes. |
| 3: | What is a table relationship and how is it ... |
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.