2025-10-22
135 reads
Data Quality
The Fake Speakers
Someone generated a fake speaker profile for their conference, which Steve finds disturbing.
2023-12-02
541 reads
Email Validation Simplified with Web API and SSIS
Email based validation is more than just a simple RFC check, this is where Melissa's Global Email Verification with a web-based API and SSIS delivers valuable data to SQL Server Professionals.
2020-12-14
SQL Server Best Practices for Data Quality
Accurate data is imperative for an organization to conduct cost effective decision making. Like everything else, change is constant for your data. There is a need to cleanse and validate data when received and on a regular basis. Unfortunately, cleansing and validating data is difficult with the native SQL Server toolset. How do we leverage the SQL Server tool set to achieve these goals?
2020-01-03
Data Quality
Problems with data quality are easier and cheaper to prevent than to solve later. In this article, Joe Celko talks about data quality and where the issues tend to happen.
2018-12-20
2,693 reads
Data Quality - Addressing non-stated requirements
Producing a crib sheet for data quality drives a shared understanding of the data used to power the business.
2016-07-28
1,331 reads
Design : Find table with Identities with missing unique constraints
In an OLTP DB, other than an autogenerated Identity , there should be something else on the table which makes the non-identity data unique, as in, unique if you had to drop the ID column.
2016-02-03 (first published: 2016-01-22)
503 reads
Data Degradation
The other day at a conference, the subject of data degradation/corrosion arose. The speaker at the conference said that data in a database degraded or corroded over time. The statement was made as if degradation over time applied to all databases. I found this blanket statement to be misguided. Indeed, I think that data does degrade in some databases, but not all.
2009-05-14
2,180 reads
Getting A Clue About Your Databases
Got a new database you know nothing about? Here's my basic proposal on how to find interesting tables in it.
2009-01-09
10,741 reads
Taking the Temperature of Your Data
Enhanced model performance comes from extracting as much information content as possible… relative to the specific performance metrics you are using to measure success.
2008-02-12
2,257 reads
Blogs
Setting Up a Mac for Data Engineering and AI Work
If you work with data pipelines, SQL, notebooks, or machine learning models, a Mac...
Want to look at cloud reporting but not sure what the costs will be?
By ChrisJenkins
Have you been thinking about migrating your reporting to Microsoft Fabric or Snowflake but...
The Joyful Craftsmen and the Revolt BI join forces
The Joyful Craftsmen has become the new owner of Revolt BI. The merger creates...
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 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...
BIT_COUNT I
Comments posted to this topic are about the item BIT_COUNT I
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