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CSS SQL Server Engineers
This is the official team Web Log for Microsoft Customer Service and Support (CSS) SQL Support. Posts are provided by the CSS SQL Escalation Services
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September, 2010
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September, 2010
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CSS SQL Server Engineers
Case of using filtered statistics
Posted
over 2 years ago
by
JackLi
3
Comments
Technorati Tags: Performance SQL Server 2008 introduces a new feature called filtered statistics. When used properly, it can dramatically improve cardinality estimate. Let’s use an example below to illustrate how cardinality estimate can be incorrect...
CSS SQL Server Engineers
Error 17953 - SidePageTable::Init() DeviceIoControl() : Operating system error 1(Incorrect function.) encountered.
Posted
over 2 years ago
by
psssql
0
Comments
When attempting to run dbcc checkdb or create a snapshot database you may encounter the following errors when using a UNC location that does not support all sparse file operations. 2010-09-21 17:27:26.47 spid82 Error: 17053, Severity: 16, State: 1. 2010...
CSS SQL Server Engineers
Slow query performance because inaccurate cardinality estimate when using anti-semi join following upgrade from SQL Server 2000
Posted
over 2 years ago
by
JackLi
5
Comments
We have a few customers who reported that some of their queries run slower following upgrade from SQL Server 2000 to SQL Sever 2005, 2008 and 2008 R2. Specifically, queries experiencing the issue have anti-semi joins in the query plan and the join involves...
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