SQLServerCentral Article

A Case Study in Performance Tuning

SQL Server does a wonderful job of tuning itself, selecting the optimum query plans and in general performing very well under a variety of conditions. That does not mean the a good DBA cannot add value by setting up the system and ensuring the optimizer receives the information that it needs. New author Gordon Pollokoff brings us a short case study from a project he as recently involved in where a new application required a bit of tuning.

SQLServerCentral Article

On the Trail of the ISO Week

Chris Hedgate, one of our regular SQL Server columnists, recently became intrigued by the way that SQL Server implements the week number. His concern was why SQL Server treats week 53 as week 1, which is not that way that ISO6801 sees it. Read about his investigation into the methods of implementing an algorithm to solve this problem.

Technical Article

SQL Server 2005 Recursive Functions

SQL Server 2005 has added a new format for queries called a Common Table Expression or CTE. CTE’s are part of the SQL:1999 Specification and represent further compliance with this specification by SQL Server. This article will cover using one of the many capabilities of CTE’s, implementing recursive functions. A recursive function is a one that iteratively executes itself. Understanding how CTE’s implement recursive functions is the first step to understanding the full capabilities of CTE’s.

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Question of the Day

Hyperscale Replicas II

How many Azure SQL DB Hyperscale HA replicas can be configured as of Sept 2026?

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