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SQL Server DMVs in Action: Better Queries with Dynamic Management Views

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When I first discovered DMVs, I was enthralled because they made many difficult things so easy. It was simple to identify, typically within seconds, the core performance problems that affect SQL Server databases. For example, I could quickly discover which queries were taking the longest time to run, which indexes were missing, and why queries were being blocked. This was only the tip of the iceberg; the deeper I dug into DMVs, the more information they provided to help me fix performance problems.

Although I was captivated by the power of DMVs, I was frustrated because there was very little awareness, even among experienced DBAs, of their existence. In response to this I wrote an article for Microsoft’s MSDN magazine that was published in January 2008, which showed how useful DMVs could be. I then waited, expecting someone to write a book about the subject.

Time passed, and although several articles about DMVs were subsequently published, the book I wanted to read was not forthcoming. So late in 2009 I contacted Manning Publications to discuss the possibility of writing such a book. You’re now holding the fruit of that conversation.

I’m confident this book will help you successfully identify and target your performance problems as well as suggest solutions to these problems, giving you betterperforming SQL Server databases.

It’s heartening to hear comments from people when they first discover the power of DMVs; they too are amazed at how easily DMVs can help identify problems and propose possible solutions to these problems. Like me, they’re probably mystified why DMVs aren’t more widely used. I hope this book will help correct this situation.

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