The Fake Speakers
Someone generated a fake speaker profile for their conference, which Steve finds disturbing.
2023-12-02
513 reads
Data Quality
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
1,321 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)
491 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
10,730 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
Principles of ROI Development for Data Quality Projects
This article outlines 15 principles of ROI development for data quality (DQ) projects that can be leveraged across any industry.
2008-02-05
1,747 reads
Blogs
TSQL Tuesday #188 Growing community
I am responding late to a T-SQL Tuesday invite from John Sterrett. John’s call...
Time to Revive our YouTube Channel
It’s been forgotten about and neglected for few years but I’ve decided to dust...
Microsoft MVP 2025: Continuing the Data Platform Journey
I am honored to announce that I have been renewed as a Microsoft MVP...
Forums
How a Legacy Logic Choked SQL Server in a 30-Year-Old Factory
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People Make Odd Choices
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SQL Server 2022 Clusterless Distributed Availability Group
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Question of the Day
Query Plan Regressions --
For the Question of the day, I am going to go deep, but try to be more clear, as I feel like I didn't give enough info last time, leading folks to guess the wrong answer... :) For today's question: You’re troubleshooting a performance issue on a critical stored procedure. You notice that a previously efficient query now performs a full table scan instead of an index seek. Upon investigating, you find that an NVARCHAR parameter is being compared to a VARCHAR column in the WHERE clause. What is the most likely cause of the query plan regression?
See possible answers