Last week the SQL Server troubleshooting-related topics came again on my table, and it’s actually quite an important topic. As I have disparate links I thought it makes sense to bring the links together in a post.
When searching for information it’s always a good idea to start with the documentation or the support site, in what concerns SQL Server troubleshooting Microsoft has several valuable resources on what concerns performance issues, application performance, ad-hoc queries, blocking, stored procedure recompilation, clusters, etc. Even if outdated, of interest could be also the Improving .Net Application Performance and Scalability resource, with a chapter on SQL Server Performance and ADO.NET. Other resources could be found in Technet, for example Troubleshooting Performance Problems in SQL Server 2005, a similar document being available on SQL Server 2008 from MSDN. As a way to avoid the need for troubleshooting, it makes sense to check also the SQL Server Best Practices.
There are several good books on this topic I heartily recommend, the first on my list is the book of C. Bolton et al, Professional SQL Server 2008 Internals and Troubleshooting. What’s interesting to note is that the book is available to browse and read on Scribd as part of a eBook Deal with Wiley, deal that includes several other programming and non-programming books (See Wiley’s profile on Scribd). The code for several chapters from the C. Bolton's book is available on Wiley’s website. Of interest are especially the chapters on DMV (dynamic management views) because performance troubleshooting often resumes in searching for hints in SQL Server internal tables. Another book, actually booklet, on DMV comes from Redgate, the SQL Server DMV Starter Pack, the pack being available also with a list of 30 sample scripts downloadable together as zip.
Talking about scripts, there are many scripts available on DMV from Technet’s Script Repository. If you want to get an overview of your SQL Server configuration and health, you could check Diagnostic Information Queries available from Glen Berry’s blog for SQL Server 2005, respectively SQL Server 2008 and 2008R2.
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