December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2012 Unleashed
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Optimistic Locking Using the rowversion Data Type
SQL Server 2012 provides a special data type called rowversion that can be used for optimistic locking purposes within applications. The purpose of the rowversion data type is to serve as a version number in optimistic locking schemes. SQL Server automatically generates the value for a rowversion column whenever a row that contains a column of this type is inserted or updated. The rowversion data type is an 8-byte binary data type, and other than guaranteeing that the value is unique and monotonically increasing, the value is not meaningful; you cannot look at the individual bytes and make any sense of them.
Note
In previous versions of SQL Server, the rowversion data type was also referred to ...
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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.