August 2012
Intermediate to advanced
1416 pages
33h 39m
English
book
Microsoft SQL Server 2012 Bible
by Adam Jorgensen, Jorge Segarra, Patrick LeBlanc, Jose Chinchilla, Aaron Nelson
Content preview from Microsoft SQL Server 2012 Bible
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Chapter 11
Projecting Data Through Views
In This Chapter
Planning Views Wisely
Creating Views with Management Studio or DDL
Updating Through Views
Considering Performance and Views
Using Nesting Views
Exploring Security through Views
Learning Synonyms
A view is the saved text of a T-SQL SELECT statement that may be referenced as a data source within a query, similar to how a subquery can be used as a data source—no more, no less. A view cannot be executed by itself; it must be used within a query.
Views are sometimes described as “virtual tables.” This isn't an accurate description because all views do not store any data. Views that are indexed are materialized and actually store data. If they are not indexed, they are like any other SQL query; views merely refer to the data stored in tables.
With this in mind, you need to fully understand how views work, the pros and cons of using views, and the best place to use views within your project architecture.
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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.