Writing aggregate queries is one of the most important tasks for anyone working with T-SQL. Determining the expressions required in the GROUP BY clause is not that difficult, but what do you do if you need to include different combinations of group by expressions in the same result set? Alfonso demonstrates how to use the GROUPING SETS operator to accomplish this task.
Create the definition of your holidays and have them available for any year. Create a Calendar including holidays and business/work dates.
Vitor Montalvao explains how to work with the basic configuration settings for a SQL Azure database from the Microsoft Azure portal itself.
The General Data Protection Regulation (GDPR) will affect organisations in countries around the world, not just those in Europe. The GDPR regulates how personal data is stored, moved, handled, and destroyed. Not following the regulation will lead to dire consequences for your organisation. As a data professional or developer, you may have many questions and might be wondering how it will affect the way you will do your job. William Brewer answers common questions about the GDPR that you were too shy to ask.
Erik Darling partitions the Stack Overflow database, then uses sp_WhoIsActive's @get_locks = 1 parameter to demo locking.
If you could look back on your career, is there some advice you wish you had? Is there something you'd tell people considering your job as a career? Let us know this Friday.
Policy-Based Management, a feature of SQL Server, is a flexible tool that can help DBAs manage one or more SQL Server instances. It's used for monitoring and enforcing a standard set of policies for SQL Server throughout an organization. While there are many built-in conditions from which to choose, Dennes demonstrates how to set up a custom policy as well as a standard one. Viewing the policy status over many servers can be tedious, so he also explains how DBAs can evaluate the states of multiple servers with just one glance.
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On which Linux versions is SQL Server 2025 on Linux supported?
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