Improved RCSI Ghost Cleanup in SQL Server 2022
An example of poor update performance under RCSI as compared with locking read committed. Details of an improvement in SQL Server 2022 that can help avoid the worst effects.
2025-01-03
Articles
DAX For SQL Folks: Part I- Intro to DAX, Power BI and Data Viz
In this first article, get an introduction to DAX, it's uses, and the basics of a DAX query as compared to a T-SQL query.
2025-01-01 (first published: 2020-03-26)
25,540 reads
The Data Center that Exploded
A while back, in a Simple-Talk editorial meeting, someone bet Phil Factor that he couldn't come up with a Halloween story. To our surprise he said he could, as long as he didn't have to keep to the strict literal truth. In the end, he came up with a story about a story, and it is true that he first told the story in a data Centre at Halloween!
2025-01-01 (first published: 2014-10-31)
10,375 reads
GUID in SQL Server
This tip's objective is to present and describe several T-SQL examples for creating, using, and analyzing GUIDs and assessing their uniqueness.
2024-12-30
How to Repair Corrupt MySQL Tables
In the modern world, the companies are not solely dependent on a specific database server platform. There are many database platforms available that are adequate to handle moderate workload and client requirements of high availability and disaster recovery. MySQL is one of those database platforms which provides a lot of features and high performance. Just […]
2024-12-27
1,514 reads
SQL Server Forced Plans Overwite the Query Hash
A 16-year old SQL Server bug that means 'forced plans' have the query plan hash in place of the expected query hash. Includes an explanation and discussion of the term 'morally equivalent plan'.
2024-12-27
Convert Excel Workbooks to CSV with Microsoft Fabric
For my new mission, I set out to convert a list of files from Excel to comma-separated values (CSV). We upload the original Excel files to a Data Lake in Fabric. We then need to convert a specific worksheet and move the CSV files to a different folder in Data Lake.
2024-12-25
A gentle introduction to dbt
Over the past years, the tool dbt – short for data build tool – has become quite popular in the data engineering world for handling such an ELT process. dbt takes on the role of the “T”, meaning it’s responsible for transforming the data in a certain data store.
2024-12-23
Connecting Streamlit to Upload Data to Snowflake
How to create a connection for StreamLit and Snowflake to upload data for visualization
2024-12-20
2,568 reads
Data Warehouse Considerations - SCD Type 2 vs Overwrite Dimension Tables
How we handle data warehousing updates to dimension tables is crucial and this article covers Slowly Changing Dimensions versus overwriting tables.
2024-12-20
Blogs
New article – migrating from a named instance
By Brian Kelley
Do you have a case where you have a named instance you'd like to...
Using the SIGN() Function: #SQLNewBlogger
By Steve Jones
I was trolling the docs and noticed the SIGN() function. I have never written...
T-SQL Tuesday #201 Round-Up: Temp Tables, Friend or Foe?
By ReviewMyDB
The T-SQL Tuesday #201 round-up: nine bloggers on whether temp tables are a friend...
Forums
Admin Rights for Everyone
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Kerberos Authentication for Aurora PostgreSQL: Mapping AD Groups to Database Roles
Comments posted to this topic are about the item Kerberos Authentication for Aurora PostgreSQL:...
RegEx Functions I
Comments posted to this topic are about the item RegEx Functions I
Question of the Day
RegEx Functions I
Which of these RegEx functions need compatibility level 170 in SQL Server 2025?
See possible answers