T-SQL

Technical Article

T-SQL Best Practices - Don't Use Scalar Value Functions in Column List or WHERE Clauses

  • Article

A classic article by Gerg Larsen explaining how and how not to use a function within your T-SQL statements. Where you place your function within your T-SQL statements determines how your query will be processed and can severely impact the query execution plan and the performance of your query.

(1)

You rated this post out of 5. Change rating

2013-11-28

6,824 reads

Blogs

New article – migrating from a named instance

By

Do you have a case where you have a named instance you'd like to...

Using the SIGN() Function: #SQLNewBlogger

By

I was trolling the docs and noticed the SIGN() function. I have never written...

T-SQL Tuesday #201 Round-Up: Temp Tables, Friend or Foe?

By

The T-SQL Tuesday #201 round-up: nine bloggers on whether temp tables are a friend...

Read the latest Blogs

Forums

Admin Rights for Everyone

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Admin Rights for Everyone

Kerberos Authentication for Aurora PostgreSQL: Mapping AD Groups to Database Roles

By Arvind Toorpu

Comments posted to this topic are about the item Kerberos Authentication for Aurora PostgreSQL:...

RegEx Functions I

By Steve Jones - SSC Editor

Comments posted to this topic are about the item RegEx Functions I

Visit the forum

Question of the Day

RegEx Functions I

Which of these RegEx functions need compatibility level 170 in SQL Server 2025?

See possible answers