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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The SEQUENCE Object
A SEQUENCE is a user-defined schema-bound object that generates a sequence of numeric values. Historically in SQL Server, automatically generated sequence numbers were obtained by adding an IDENTITY column to a table. The SEQUENCE object, introduced in SQL Server 2012, provides another mechanism for generating unique, sequential numbers. A SEQUENCE object, unlike an IDENTITY column, is not associated with a specific table. A sequence object can be referenced independently, and the sequence values generated can be coordinated across multiple rows and tables.
A SEQUENCE object is created using the CREATE SEQUENCE statement. When you define a SEQUENCE object, you can specify options such as the following:
The increment value ...
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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.