Articles

External Article

Operator of the Week - Lazy Spool

Continuing to illuminate the depths of SQL Server's Query Optimizer, Fabiano shines a light on the sixth major Showplan Operator on his list: the Lazy Spool. What does the Lazy Spool do that's so special, how does the Query Optimizer use it, and why is it so Lazy? Fabiano Amorim explains all.

2010-06-28

2,774 reads

Technical Article

SSAS: Explaining the State Transitions Viewer for Sequence Clustering

In SQL Server 2005 and SQL Server 2008, Microsoft has added some fantastic visualizations around data-mining algorithms. These visual aids allow us to see exactly what a particular algorithm is predicting or describing—making a difficult subject easier to understand.

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

You rated this post out of 5. Change rating

2010-06-25

2,023 reads

Blogs

The Book of Redgate:A Prehistory

By

I’ve covered the values in a number of previous posts on the Book of...

Evidence-bound: what AgentDBA will and won’t link

By

When the evidence names the database, it says so. When it doesn’t, it stops....

Prep data for AI vs. Fabric Data Agent Instructions: What Goes Where?

By

Making Data AI-Ready, Part 3 (This is the final article in a three-part series...

Read the latest Blogs

Forums

Four Rules for Adding AI Without Breaking What Already Works

By dbakevlar

Comments posted to this topic are about the item Four Rules for Adding AI...

SQL Server 2025 section missing?

By deubel_m

Hello, the title says it all. Is the SQL Server 2025 section missing?

A design question in a parent child relationship

By eichnerm

I am not sure which is the best way to proceed. I have parent...

Visit the forum

Question of the Day

Hyperscale Replicas III

In an Azure SQL Database Hyperscale Edition, how many named replicas can be configured?

See possible answers