Introduction When developers first learn SQL aggregation, they usually start with the GROUP BY clause. It works well for summary reports because it combines multiple rows into a single result for each group. For example, you can calculate total sales per region or average salary per department. The limitation of GROUP BY appears when you […]
2026-06-05
2,810 reads
Learn a quick way to calculate distances without resorting to spatial calculations.
2026-05-08
2,106 reads
Level 2 formalizes the behavioral guarantees that a changeset must provide in order to be safely deployed and rolled back. It introduces the deployment contract, checkpoint semantics, and the structural scope of Create and Rollback scripts. Data changes are addressed through a dedicated Update mechanism, with clear boundaries and limitations. By the end of this level, a changeset becomes a predictable and well-defined unit that can be reasoned about independently of execution context.
2026-05-06
760 reads
A short introduction to how deadlocks work and how you can affect their behavior inside your system.
2026-05-01
2,625 reads
Introduction SQL Server includes several built-in mathematical functions that allow developers to perform complex calculations directly within queries. Among these are trigonometric functions such as SIN(), COS(), and TAN(), which are useful in scenarios involving engineering calculations, geographic data processing, simulations, and analytics. Although these functions are straightforward to use, developers occasionally encounter unexpected results […]
2026-04-29
2,298 reads
Stairway to Reliable Database Deployments introduces a progressive approach to managing database changes with clear intent, predictable rollback, and explicit behavioral guarantees. Starting from change design and moving toward execution and coordination in complex environments, the Stairway provides a conceptual framework for deploying database changes safely and consistently, independent of specific tools or automation platforms.
2026-04-15
1,484 reads
Generating temporary passwords is a common requirement in many applications. Users may need to reset a forgotten password, new accounts may require an initial password, or developers may generate test credentials. While password generation is often implemented in application code, doing it directly in SQL Server provides clear advantages. It centralizes the logic, ensures consistency […]
2026-04-10
1,927 reads
2025-11-21
152 reads
SQLAutomate is a lightweight PowerShell tool that simplifies SQL Server deployment by automating both installation and post-installation configuration. Whether you're setting up one instance or dozens, this guide shows how to use SQLAutomate to save time and reduce manual work.
2025-06-06
10,446 reads
This article examines how tempdb is affected by recursive queries, using a few different methods.
2025-05-23
2,198 reads
Both SQL Server and PostgreSQL are moving fast into AI territory — and if...
By Steve Jones
We keep adding new AI capabilities to Redgate Monitor, where it makes sense. Check...
By ReviewMyDB
A behind-the-scenes look at Day of Data Jacksonville 2026, the transition from SQL Saturday,...
Hallo all! My problem is this: I have quite a bunch of TSQL scripts...
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Does this run successfully on a SQL Server 2022, US English default installation?
DECLARE @YenAmount MONEY; SET @YenAmount = ¥1500; SELECT @YenAmount AS RawValue;See possible answers