Jeff Moden

  • Interests: SQL. When Im not having fun with that, then SQL. ;-)

SQLServerCentral Article

A Simple Formula to Calculate the ISO Week Number

He admits it wasn't his idea but his head sure wishes it was. SQL Server MVP Jeff Moden explains a wonderful, super simple, very high performance formula that will calculate ISO Week Numbers. If you're "stuck" with SQL Server 2005 or less, you're going to like this a whole lot!

4.89 (36)

You rated this post out of 5. Change rating

2015-10-23 (first published: )

35,984 reads

SQLServerCentral Article

Calculating Duration Using DATETIME Start and End Dates (SQL Spackle)

It's an old problem with a solution that's nearly as old. SQL Server MVP Jeff Moden shows us the old trick mixed with a slick trick to format the duration as extended hours, minutes, seconds, and milliseconds.

4.84 (50)

You rated this post out of 5. Change rating

2015-04-03 (first published: )

59,612 reads

SQLServerCentral Article

Hierarchies on Steroids #1: Convert an Adjacency List to Nested Sets

SQL Server MVP Jeff Moden shows us a new very high performance method to convert an "Adjacency List" to “Nested Sets” on a million node hierarchy in less than a minute and 100,000 nodes in just seconds. Not surprisingly, the "steroids" come in a bottle labeled "Tally Table".

4.9 (63)

You rated this post out of 5. Change rating

2014-09-19 (first published: )

39,009 reads

SQLServerCentral Article

How to Make Scalar UDFs Run Faster (SQL Spackle)

It's a well known fact that Scalar UDFs are the stuff of performance nightmares in T-SQL. But are they really as bad as they say? SQL Server MVP Jeff Moden shows us that they might not really be as big a problem as you might think and what you can do when they actually are.

4.93 (102)

You rated this post out of 5. Change rating

2014-06-24 (first published: )

26,122 reads

SQLServerCentral Article

Skipping Columns (& other tricks) Using BCP Format Files (SQL Spackle)

BULK INSERT and BCP are powerful, high performance tools for importing text files. SQL Server MVP Jeff Moden gives us several nifty tips in this introduction to BULK INSERT and BCP Format Files including "Skipping Columns" and the sequestration of bad rows while still loading all the good data.

4.78 (27)

You rated this post out of 5. Change rating

2014-01-23

21,637 reads

Blogs

What to Know about Power BI Theme Colors

By

Power BI reports have a theme that specifies the default colors, fonts, and visual...

A Global Team Meeting

By

The last few years at Redgate we’ve had the entire (or most) of the...

A New Word: sayfish

By

sayfish – n. a sincere emotion that seems to wither into mush as soon...

Read the latest Blogs

Forums

What Do You Want to Learn?

By Steve Jones - SSC Editor

Comments posted to this topic are about the item What Do You Want to...

How to Rename a Column in SQL Server

By Nisarg Upadhyay

Comments posted to this topic are about the item How to Rename a Column...

Disable Memory Grant Feedback Persistence

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Disable Memory Grant Feedback Persistence

Visit the forum

Question of the Day

Disable Memory Grant Feedback Persistence

In SQL Server 2022, how can I disable memory grant feedback persistence?

See possible answers