To design, or redesign, a database of any complexity, the Entity-Relationship modelling tool becomes essential. The specialized tools that have dominated the industry for a long while are expensive and are installed on a workstation. Now that browser technology has progressed so rapidly, the online database modelling tools have become viable and are starting to attract the attention of database designers. Are they good enough to use now? Robert Sheldon finds out.
Steve Jones discusses the idea of building software better, and why that's a challenge for many of us.
Learn how you can find data in a string and extract it, no matter where it's located.
Arshad Ali talks about using OPENJSON to read and parse JSON data and looks at how to convert it to tabular format.
Slack has become a popular phenomenon in the technical world, especially for software developers. Should we join in?
Daniel Farina shows how to disable the optimizer rules by using QUERYRULEOFF, an undocumented hint.
In a couple of days, Microsoft is holding Data Driven, an event that will highlight SQL Server 2016.
It sometimes pays to go back and look at what you think you already know about SQL. Joe Celko gives a quick revision of the GROUP BY and HAVING clauses in SQL that are the bedrock of any sort of analysis of data, and comes up with some nuggets that may not be entirely obvious.
Changing Database Collation Through Primary keys, Foreign Keys, Default and Check Constraints and more.
Slow-running queries can degrade your Redshift cluster’s performance and lead to increased costs. Identifying...
By gbargsley
If you've been here before, you know this blog is usually about SQL Server,...
I’ve been doing storage load tests for SQL Server for a long time, both...
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In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?
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