Articles

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".

(63)

You rated this post out of 5. Change rating

2014-09-19 (first published: )

43,034 reads

External Article

A TDD Journey: 3- Mocks vs. Stubs; Test Frameworks; Assertions; ReSharper Accelerators

Test-Driven Development (TDD) involves the repetition of a very short development cycle that begins with an initially-failing test that defines the required functionality, and ends with producing the minimum amount of code to pass that test, and finally refactoring the new code. Michael Sorens continues his introduction to TDD by implementing the first tests and introducing the topics of Test doubles; Test Runners, Constraints and Assertions.

2014-09-19

7,785 reads

Blogs

A bespoke reporting solution doesn’t have to cost the earth

By

You could be tolerating limited reporting because there isn’t an off the shelf solution...

Presenting with Visual Studio Code

By

A while back I wrote a quick post on setting up key mappings in...

Advice I Like: In 100 Years

By

In 100 years a lot of what we take to be true now will...

Read the latest Blogs

Forums

Lots of FKs

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Lots of FKs

Real-time On-prem SQL Server Data in Excel – Over the Internet

By Cláudio Tereso

Comments posted to this topic are about the item Real-time On-prem SQL Server Data...

Can You Let Go of Determinism

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Can You Let Go of...

Visit the forum

Question of the Day

Lots of FKs

In SQL Server 2025, what are the most outgoing and incoming FK references a table can have?

See possible answers