External Article

Demystifying Oracle's Clustering Factor

One of the more confusing statistics in Oracle is one called the clustering factor. Associated with an index, it's actually dependent on the table data, more specifically the distance between 'jumps' for a given index key. Commonly, a 'jump' is the number of blocks between rows containing the given index key starting with the first block found containing that key. If that sounds confusing don't despair, David Fitzjarrell explains in detail.

External Article

The Importance of Maintenance on MSDB

MSDB is a system database used by SQL Server. MSDB stores all sorts of data, such as backup history, log shipping monitor history, SSIS packages and Service Broker queue data to name a few. Just like user databases, MSDB needs regular maintenance, including index optimizations and, more importantly, regular purging. In this article, Tim Radney looks at how neglecting your MSDB can negatively impact on your environment.

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