T-SQL

External Article

Swap column data due to inserting data into wrong columns for SQL Server table

  • Article

This article is for newbies who have just started their career in SQL development. Everyone might have faced this problem when importing or inserting data into tables when they accidentally put the data in the wrong columns. The first thought would be to delete the data and start over, but in this tip we look at a simple solution to swap the data.

2009-05-13

2,356 reads

SQLServerCentral Article

ROW_NUMBER(): An Efficient Alternative to Subqueries

  • Article

The ROW_NUMBER function has drastically changed the way we can write a number of queries in T-SQL. New author Francis Rodrigues brings us a few places where this function can improve the efficiency of your code.

(122)

You rated this post out of 5. Change rating

2010-01-29 (first published: )

72,833 reads

External Article

Median Workbench

  • Article

SQL Server database engine doesn't have a MEDIAN() aggregate function. This is probably because there are several types of median, such as statistical, financial or vector medians. Calculating Medians are essentially a row-positioning task, since medians are the middle value of an ordered result. Easy to do in SQL? Nope. Joe Celko explains why.

2009-05-06

2,024 reads

Blogs

Webinar: Navigating the Database Landscape in 2026

By

For a number of years, we’ve produced the State of the Database Landscape report,...

Claude AI Convinced Me Not to Build an iPad App

By

I coach volleyball and I do a lot of stat stuff on paper. I...

A New Word: Dolorblindness

By

dolorblindness – n. the frustration that you’ll never be able to understand another person’s...

Read the latest Blogs

Forums

Data Warehouse Toolkit meets Star Schema: The Complete Reference

By pietlinden

Is there a good syllabus for reading these two together? (Yes, it's called the...

GPX distance and time analysis in SQL Server

By Cláudio Tereso

Comments posted to this topic are about the item GPX distance and time analysis...

The DBA is Dead; Long Live the DBA

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The DBA is Dead; Long...

Visit the forum

Question of the Day

Changing the AG Listener

In SQL Server 2025, if I want to remove an IP from a listener, what do I do?

See possible answers