WHAT’S IN THIS CHAPTER?
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This chapter is about the system database called tempdb, which is used for storing temporary objects and has been a key component of SQL Server since its inception. Beginning with SQL Server 2005, however, the role of tempdb has been brought to the forefront with a plethora of new features and optimizations that depend on temporary objects.
All these features have increased the visibility and requirement for good tempdb performance, which is why we have dedicated a full chapter to a thorough grounding in what it is used for, how to troubleshoot issues, and how it should be configured.
The first section looks at what makes tempdb special, which SQL Server components use it, and specifically how it is used. The next section covers common issues and how to troubleshoot them, which sets the scene for the configuration recommendations that follow. Finally, you’ll find an especially useful best ...