Finding Implicit Column Conversions in the Plan Cache
Last year Tibor Karaszi posted a blog post titled Match Those Types that talked about implicit data type conversions associated with mismatched data types between filter criteria and table column data...
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Common Table Expressions (CTEs), Window Functions, and Views
Common Table Expressions (CTEs), window functions, and views are all common things in SQL Server development these days. When CTEs and window functions were introduced in SQL Server 2005, a lot of...
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Implicit Conversions that cause Index Scans
Implicit conversions seem to be a growing trend in the SQL Server performance tuning work that I’ve been engaged in recently, and I’ve blogged in the past about ways to identify when implicit...
View ArticleNew Article – How expensive are column-side Implicit Conversions?
Last week I blogged about Implicit Conversions that cause Index Scans, and showed two charts for where implicit conversions could result in an index scan operation instead of an index seek during query...
View ArticleThe Accidental DBA (Day 21 of 30): Essential PerfMon counters
This month the SQLskills team is presenting a series of blog posts aimed at helping Accidental DBAs ‘keep the SQL Server lights on’. It’s a little taster to let you know what we’ll be covering in our...
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A warning about Diagnostic Manager’s Query Monitor Feature in v9+
During a recent client engagement to look at the performance problems of a production SQL Server I ran into something I hoped to never see in real life. For a long time I’ve been a proponent of...
View ArticleParallel Maintenance Tasks with Service Broker
I’ve been doing a bit of work on Service Broker while building a series of new Pluralsight courses and one of the things I recently found a good use for Service Broker on a client system with a 8TB...
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SQL Sentry Plan Explorer Completely Free!
Just in case you missed the announcement by Greg Gonzalez at SQL Sentry this morning, Plan Explorer Pro and what would have become Plan Explorer Ultimate are now completely free. Since SQL Sentry first...
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Tracking Compiles with Extended Events
This post comes from a question by Tara Kizer on DBA StackExchange related to Compilations/Sec in PerfMon and using Extended Events to try and track the compilations that were happening in SQL Server...
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SQL 101: Parallelism Inhibitors – Scalar User Defined Functions
As Kimberly blogged about recently, SQLskills is embarking on a new initiative to blog about basic topics, which we’re calling SQL101. We’ll all be blogging about things that we often see done...
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