The Rich Rewards of Tuning SQL
The next time you are tempted to hammer a performance problem with hardware, why not instead invest that time in hammering and refining your SQL queries? There are rich rewards to be had.
The next time you are tempted to hammer a performance problem with hardware, why not instead invest that time in hammering and refining your SQL queries? There are rich rewards to be had.
PowerShell is a very popular and powerful feature in the Microsoft stack. It is extensively used for development, deployment and administration across various ecosystems like SQL Server, SharePoint, Azure Cloud and others. PowerShell cmdlets are available for HDInsight as well and in this tip we will take a look at fundamental aspects of Microsoft Azure PowerShell for HDInsight.
Here is a useful exam that you can administer in either 10 or 15 minutes, either oral or written, when you interview for hiring permanent or contract workers for jobs in SQL Server development or support. (This is not a test for SQL Data Base Administrators.)
It's Christmas, so here are some Christmassy-themed songs to guess.
In the emerging "Internet of Things", there are multitudes of devices collecting data at differing sampling rates. Integrating this data so the data has a common granularity in time is important to not only allow for accurate analysis and mining, but it will also aid in reducing the amount of data to be stored and processed.
In this tip, we will demonstrate how to use the T-SQL AVG function and GROUP BY clause to transform data collected from two devices sampling at 100Hz and 40Hz to one row per second.
SSRS continues to use SET FMTONLY ON even though it has many problems. How can we cope?
Pester allows you to automate the testing of PowerShell scripts. It can test the output of a function as you develop it by validating simple data (scalars) and arrays, and allows you to focus on the one function you want to test by using 'mocking' to fake all the other functions and Cmdlets.
When a hospital’s mission-critical database fails at Christmas, disaster for the hospital – and its hapless DBA – seems certain. With less than an hour to spare before catastrophe, can the DBA Team save the day? This is a fictionalized true story.
By Steve Jones
Next week I’m at VS Live in San Diego (register and join me) and...
Ten years ago today, I filmed a Pluralsight Play by Play on open source...
By Steve Jones
It’s time for T-SQL Tuesday again and this is a great prompt to start...
Comments posted to this topic are about the item Stored Procedures for Server-Level Object...
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Comments posted to this topic are about the item The Costs of Multiple Platforms
I have this data in a table in a SQL Server 2025 database:
EmailAddressID EmailAddress 7 dylan0@ADVENTURE-WORKS.COM 8 Diane1@ADVENTURE-WORKS.COMIf I run this query, which row(s) are returned?
SELECT top 10 * FROM person.EmailAddress WHERE REGEXP_LIKE(EmailAddress, '^d') AND BusinessEntityID IN (7,8)See possible answers