SQL Server News & Information tsql, performance tuning, industry trends, & bad jokes
tsql, performance tuning, industry trends, & bad jokes
This site is maintained by Jason Massie. He has 10 years experience as a DBA and has specialized in performance tuning for the last five. He was recognized by Microsoft as a SQL Server MVP. Jason has spoken at the Professional Association of SQL Server Conference, the North Texas SQL Server Users Group, SQL Connections and TechED. He has worked at Terremark (formerly Data Return) for nearly a decade.
You can contact him at jason@statisticsio.com or 469.569.5965
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I have two complaints about the documentation. Incomplete BOL and little info on the myriad of trace flags that is growing with every other QFE.
From my understanding, the documentation for SQL 2005 was locked down in April of 2005 and the product went RTM in November of 2005. They obviously had more important things to do which is understandable. The code base for BOL was already over 100MB. They have updated it a couple times and another update is due with SP2 so hopefully it will be better.
My big complaint is the lack of documentation on the DMV’s. For example, sys.dm_os_memory_clerks and sys.dm_os_memory_objects are documented but a type definition table would spectacular. See sys.dm_os_wait_stats for an example. Slava, what is up?
After SQL Server SP3, a lot of hotfixes had to be enabled with traceflags and very few of them were documented to the degree that T1118 was. This makes troubleshoot difficult. It is also not clear what trace flags have carried over from 2000. I have heard from reliable source that T1118 has but what about the post sp3 stats trace flags?
I would also like some documentation on the internals of resource_semaphores because of an issues I have been arm wrestling but I am not sure if that would be relavant to most.
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