Five Mistakes Performance Tuners Make
Erik Darling explains why your queries aren't scaling in production.
2017-09-06
5,344 reads
Additional Articles
Introduction to Azure Cosmos DB
Azure Cosmos DB is the latest data service offering from Microsoft. Azure Cosmos DB is a super set of DocumentDB and provides a new set of capabilities. These capabilities make Azure Cosmos DB stand out from other members in the NoSQL database family.
2017-09-05
3,084 reads
Protecting production data in non-production environments
In this article, Grant Fritchey looks at the need to ‘shift left’ the database and associated database testing, while keeping sensitive data secure when it is outside the production...
2017-09-04
4,570 reads
Statistics in SQL: The Mann–Whitney U test
Phil Factor shows how to use the Mann-Whitney U test in SQL to to find out whether two samples come from the same distribution.
2017-09-04
4,456 reads
What is the biggest mistake you made in production?
When you have sysadmin access, you are bound to make a big mistake in production at some point in your career - in this post Tara Kizer looks back at what hers were.
2017-09-01
4,773 reads
Resolving could not open a connection to SQL Server errors
Have you ever gotten connectivity errors from SQL Server? Jugal Shah explains the common causes for these errors, and advises on the steps you can take to resolve them.
2017-08-31
3,542 reads
Automating the Synchronization of RDS SQL Server Agent Jobs in a Multi-AZ Environment
Although Azure is the obvious Cloud service to host SQL Server, Amazon Relational Database Service (RDS) for SQL Server is a good choice when your organisation uses AWS. RDS deals with maintenance and monitoring, and supports the use of PowerShell to automate routine tasks. What if a script needs to be triggered by an unscheduled event? Even in this case, RDS can be configured to run scripts to react when something like a failover happens. Laerte Junior shows how easy it is to set up Lambda functions and some PowerShell scripts to automatically synchronise agent jobs after a failover.
2017-08-30
2,895 reads
Fighting Evil in Your Code: Comments on Comments
One of the most glib generalisations you can make about development work is to say that code should be liberally commented, or conversely that it should never be commented. As always, the truth is more complicated. There are many different types of comment and some types are best treated firmly with the delete key, where others are to be cherished and maintained assiduously. Even though it is hard to find two developers who agree on the topic of commenting, Michael Sorens warily sketches out the issues and the battleground.
2017-08-29
3,670 reads
Implementing Azure SQL Data Sync in the Azure Portal
Azure SQL Data Sync, which has been lingering in the Preview mode since its introduction seven years ago, no longer requires the use of the Azure classic portal; you can finally access it by using the current Azure portal. Marcin Policht steps you through the process of implementing Azure SQL Data Sync using this interface.
2017-08-28
2,868 reads
The Basics of Good T-SQL Coding Style – Part 3: Querying and Manipulating Data
SQL was designed to be a third-generation language, expressed in syntax close to real language, because it was designed to be easy for untrained people to use. Even so, there are ways of expressing SQL Queries and data manipulation in ways that make it easier for the database engine to turn into efficient action. and easier for your colleagues to understand. Robert Sheldon homes in on data querying and manipulation and makes suggestions for team standards in SQL Coding.
2017-08-25
5,735 reads
Blogs
SQL Server 2025 RegEx and AI
By Steve Jones
One of the language changes in SQL Server 2025 that I’ve seen a lot...
T-SQL Tuesday #192: SQL Server 2025 Backup Changes
By Steve Jones
I hosted this month, but I decided to put my own entry in as...
Why Databases Still Fascinate Me
By Chris Yates
I get asked a lot about why or how I began working with databases...
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Getting the Object Code
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T-SQL in SQL Server 2025: Concatenating Strings
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Being Mindful of Design Time
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Question of the Day
Getting the Object Code
What happens when I run this on SQL Server 2022 in the AdventureWorks2022 database?
SELECT OBJECT_DEFINITION (OBJECT_ID(N'dbo.uspGetBillofMaterials')) AS [Object Definition]; GOSee possible answers