Using a column name in a COUNT function
Putting a column name in a COUNT() function may not always give you what you are looking for.
How to get ETL Horribly Wrong
ETL ( Extract, transform, load) doesn't have to be like a spell on hell. To make a success of ETL systems, you need the freedom and ability to make graceful U-turns when you detect a mistake in architecture or configuration: to fix the root problem rather than to merely tackle the symptoms. Feodor lists the eight most common root causes of failure in ETL systems, and how to fix them.
Database ownership and TRUSTWORTHY
Database ownership is an old topic for SQL Server pro's. Check this simple lab to learn the risks your databases can be exposed to.
You Better Learn to Work at Scale
We are managing more and more systems and databases all the time. To Steve Jones, that means we must be able to work at scale.
Using T-SQL to Perform Z-Score Column Normalization in SQL Server
In data mining, we sometimes need to perform techniques such as Z-score normalization on numeric data type columns to prevent one column from skewing or dominating the models produced by the machine learning algorithms. Dallas Snider explains how to perform this in SQL Server with T-SQL code.
Why Developers Need to Understand Execution Plans
If you can examine and understand execution plans, you can achieve better understanding of the database system and you will write better database code. Grant Fritchey shows you how.
Data Mining Part 23: Security
In this chapter we will talk about security recommendations for SQL Server Data Mining.
Data Mining Part 23: Security
In this chapter we will talk about security recommendations for SQL Server Data Mining.
Grant Fritchey Reviews Minion Reindex
Grant Fritchey reviews Midnight DBA's Minion Reindex, a highly customizable set of scripts that take on the task of rebuilding and reorganizing your indexes.
Time for Learning
How do you find time for learning? More importantly, Steve Jones asks if you find time for actual use of your knowledge.
Blogs
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Advice I Like: Respect
By Steve Jones
“Don’t aim to have others like you; aim to have them respect you.” –...
Blue Sky Programming – The Optimism Trap
Many years ago, before I joined Oracle, I was working on a major modernisation...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
SQL Server Still Wins
Comments posted to this topic are about the item SQL Server Still Wins
DBCC CHECKDB Limits I
Comments posted to this topic are about the item DBCC CHECKDB Limits I
Question of the Day
DBCC CHECKDB Limits I
When running DBCC CHECKDB on SQL Server 2025, can I include the Resource Database?
See possible answers