Tag: sql

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SQL Server Query Tuning Best Practices – Part 1

Added by 4 years ago

9.84K Views1 Comments

SQL Server MVPs Aaron Bertrand and Kevin Kline begin their series on query tuning best practices. They go over some tips and tricks for writing queries. First, Kevin spends a little time on how to approach your ...

SQL Server Query Tuning Best Practices – Part 2

Added by 4 years ago

4.09K Views1 Comments

SQL Server MVPs Aaron Bertrand and Kevin Kline continue their series on query tuning best practices. Kevin starts by talking about what you should include in test harnesses for testing your SQL code and how to i...

Specifying the Schema

Added by 3 years ago

2.68K Views1 Comments

Aaron Bertrand and Kevin Kline discuss some of the advantages for specifying the schema when creating, altering and referencing objects. They discuss how specifying a schema can affect performance and how important it is for security. They also use demos to illustrate the importance.

The Dreaded SP_ Prefix

Added by 3 years ago

2.79K Views1 Comments

Aaron Bertrand explains what the SP_ prefix is and discusses the performance issues with using it when you call a stored procedure. He also mentions a blog post he wrote about the SP_ prefix, which can be found at SQLPerformance.com/sp_prefix.

Ad-Hoc Sets

Added by 4 years ago

2.72K Views0 Comments

Aaron Bertrand goes over how to generate Ad-Hoc Sets efficiently. He shows examples of how to generate them using recursive CTEs, system tables and number tables and shows which way has the best performance.

Transitive Property of Indexes

Added by 3 years ago

2.13K Views0 Comments

In this video, Kevin Kline discusses the transitive property of indexes. He starts out by discussing how the transitive property works in algebra. Then he shares how the transitive property in algebra can be applied to Microsoft SQL Server.

Comma Delimited Parameters

Added by 4 years ago

3.31K Views0 Comments

Aaron Bertrand discusses one of his favorite topics, comma-delimited parameters. He shows the different ways you can split strings and which ways are the best.

End-To-End Troubleshooting on Microsoft SQL Server

Added by 3 years ago

5.64K Views0 Comments

In this video, SQL Server MVP Kevin Kline discusses how to go about troubleshooting and performance tuning your Microsoft SQL Server without any paid professional tools. He goes through his methodology for troubleshooting, which he has learned over the course of many years of trial and error.

Implicit Conversions

Added by 4 years ago

2.80K Views0 Comments

Kevin Kline goes over implicit conversions in SQL Server. He discusses what an implicit conversion is, traps that people fall into with implicit conversions and gives a demo on avoiding implicit conversions. ...

Exploring SQL Server’s Plan Cache

Added by 1 year ago

1.77K Views0 Comments

SQL Server’s plan cache is one of the largest regions of memory and is used to store SQL and T-SQL code for quick execution. It is largely self-maintaining and self-tuning. However, the kind of code you write and the way you invoke that code can have an enormous impact on how the plan cache is maintained, tuned, and optimized.

SQL Server Query Tuning Best Practices – Part 3

Added by 4 years ago

2.52K Views0 Comments

SQL Server MVPs Aaron Bertrand and Kevin Kline continue their series on query tuning best practices. They discuss how to build a Transact-SQL test harness to provide stability and predictability to your code. Th...

Become a Query Tuning Master with the Newest Release of SQL Sentry Plan Explorer

Added by 1 year ago

29.90K Views0 Comments

In this video, renowned query tuning expert and Microsoft Data Platform MVP Aaron Bertrand looks at the brand new release of SQL Sentry Plan Explorer, the industry's most popular free query tuning tool.

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