A genuine use for a SQL CLR Aggregate
When should you use a SQL CLR Aggregate? Lots of people have struggled with this one, but David Poole found a use, and has some interesting performance data analysis as well.
Fix SQL Server Log Shipping After a New Database File has been Added
The code in this tip will demonstrate how to continue SQL Server Log Shipping after a file has been added to the primary SQL Server database.
GenesisOne T-SQL Unscrambler
This industry-first T-SQL source code unscrambler automatically reads the details hidden in T-SQL stored procedures without altering the source code. With this granular information, it generates organized and precise data flow diagrams along with plain-language descriptions of each programming step within any database object. Resulting documentation can be generated in PDF, Word or HTML.
Database User Superfluousness In SQL Server
In this article, Thomas Knight analyzes and critiques the design of, and experience with, the "dual-level" user security in SQL Server. He then demonstrates a better theoretical alternative.
Zombie Data
Old data can come back to haunt you. Steve Jones talks about potential problems when data comes back to life.
Disaster Recovery and the Big Data Application
Ask database administrators how they implement disaster recovery in their big data environments and you'll get two typical responses: DR plans are not necessary and backups take up a lot of space. Despite this reasoning, a disaster recovery plan for your big data implementation may be essential for your company's future.
Big Data Comes to Hiring
Big Data is being used to analyze more and more data to produce better decisions. However that doesn't always work as people might expect. Steve Jones talks about some of the issues with using Big Data in hiring.
Data Mining Introduction Part 8: Microsoft Sequence Cluster
This is an introduction to the SQL Server Microsoft Sequence Cluster Algorithm.
Data Mining Introduction Part 8: Microsoft Sequence Cluster
This is an introduction to the SQL Server Microsoft Sequence Cluster Algorithm.
Blogs
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...
Setting Up a Mac for Data Engineering and AI Work
If you work with data pipelines, SQL, notebooks, or machine learning models, a Mac...
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...
locking down agent for new user on our dev machine
hi , a new user wants to be able to add sql agent jobs...
SQL Server Enum Implementation: A Single-Row View Strategy for Avoiding Magic Values
Comments posted to this topic are about the item SQL Server Enum Implementation: A...
Question of the Day
BIT_COUNT I
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 3;See possible answers