Articles

External Article

Window Functions in SQL

SQL's windowing functions are surprisingly versatile, and allow us to cut out all those self-joins and explicit cursors. Joe Celko explains how they are used, and shows a few tricks such as calculating deltas in a time series, and filling in gaps.

2013-11-14

7,422 reads

External Article

New SQL Monitor Metric: Principals with Sysadmin Login

This metric counts the number of principals who are members of the sysadmin fixed server role. SQL Server relies on role-based security to manage permissions. If multiple IT system administrators have permissions to set up new SQL Server logins, they might be inclined to do so as part of the sysadmin role. Adding a normal user to the sysadmin role could pose a security risk and is not recommended unless the principal is highly trusted.

2013-11-11

3,175 reads

External Article

SQL Server SQLCMD Basics

Sqlcmd makes many SQL Server tasks, such as automating test runs and maintenance tasks, easier and quicker. The sqlcmd command-line utility is valuable to any database developer or DBA as the prime means of executing batches of SQL Statements to SQL servers, and saving results to file. Rob Sheldon gives you the basic facts about this great utility.

2013-11-08

6,993 reads

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Increase Deadlock Detection

How can I alter the deadlock detection interval to 2 seconds instead of 5 seconds on my SQL Server 2025 instance?

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