Every SQL Server Database programmer needs to be familiar with the System Functions. These range from the sublime (such as @@rowcount or @@identity) to the ridiculous (IsNumeric()) Robert Sheldon provides an overview of the most commonly used of them.
Have you ever wanted to run a query across every database on a server with the convenience of a stored procedure? If so, Microsoft provided a stored procedure to do so. It’s unreliable, outdated, and somewhat obfuscated, though. Let’s improve on it!
Sometimes, in the quest for raw SQL performance, you are forced to sacrifice legibility and maintainability of your code, unless you then document your code lavishly. Phil Factor's SQL Speed Phreak challenge produced some memorable code, but can SQL features introduced since then help to produce code that performs as well and is also easy to understand? Kathi Kellenberger investigates.
This new chapter will show you how to work with the SSIS Data Mining Query Transformation Task
Code coverage is a practice that goes hand in hand with automated testing, reporting the percentage of your code that has been exercised during a test run. Ed Elliott and Redgate have partnered to make a code coverage tool available for SQL Server, both free and open source. SQL Cover measures the coverage of your SQL Server stored procedures and functions. It has built-in support for the popular tSQLt unit testing framework, but can also be used alongside any automated testing framework of your choosing. Find out more in this blog post.
Paul White shows how an update may fail when a partition has some data on a read-only filegroup, and explains several workarounds.
By James Serra
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By Steve Jones
Recently I ran across some code that used a lot of QUOTENAME() calls. A...
By ChrisJenkins
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Comments posted to this topic are about the item QUOTENAME Quote Parameters
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When I use QUOTENAME(), I can optionally provide the character used to surround the string in the result. Can I use any character?
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