Joe Celko in Theory and design State Transition Constraints About two decades ago, I introduced the concept of transition constraints to show Data Validation in a database is a... 24 June 2025 14 min read
Louis Davidson in T-SQL Programming DISTINCT and UNION: What happens when you use them together? When I was perusing my LinkedIn feed the other day, I came across this thread about using SELECT *. In... 26 May 2025 11 min read
Dennes Torres in T-SQL Programming Techniques to query Azure SQL’s new JSON Datatype The new JSON field type and new functions in Azure SQL brings a new world of possibilities for JSON manipulation... 07 May 2025 15 min read
Matt Gantz in T-SQL Programming Purging Data from a Large Table in SQL Server Purging data from a table is a common database maintenance task to prevent it from growing too large or to... 01 May 2025 8 min read
Louis Davidson in T-SQL Programming Exploring the SQL Server CHOOSE Function I preface a lot of what I write with whether or not it is for a “practical” use. One of... 21 April 2025 39 min read
Louis Davidson in T-SQL Programming Crazy number of Parameters… and a challenge The other day, my lovable coworker and frequent Simple Talk writer: Grant Fritchey, sent this post on X: So I... 24 February 2025 35 min read
Rodrigo Ribeiro Gomes in T-SQL Programming AI in SQL Server 2025: Embeddings One of the cornerstones of AI is a concept called embeddings. Virtually every AI model, whether for text, video, or... 18 February 2025 48 min read
Edward Pollack in T-SQL Programming Exploring Scalar Solutions to Complex Data Math There are many functions and tools available to database professionals that can solve data math challenges, regardless of complexity. A... 12 February 2025 17 min read
Louis Davidson in T-SQL Programming SQL Server BIT_COUNT and an Alternative I was editing an article the other day that uses the BIT_COUNT function that was added to SQL Server 2022.... 08 February 2025 11 min read
Aaron Bertrand in T-SQL Programming Five changes to SQL Server I’d love to see I’ve had lots of wish lists over the years, from Ladybug to Connect to UserVoice, and very few of my... 01 January 2025 5 min read
Edward Pollack in T-SQL Programming Effective Strategies for Storing and Parsing JSON in SQL Server Like XML, JSON is an open standard storage format for data, metadata, parameters, or other unstructured or semi-structured data. Because... 23 August 2024 26 min read
Aaron Bertrand in SQL Server Days of the Week, Bitwise Edition I recently had to help support synchronization and distribution of workloads between multiple servers. Some of this work involves Task... 02 August 2024 7 min read
Aaron Bertrand in T-SQL Programming Index cleanup : Harder than it looks I’m not the first person to write about cleaning up unused or redundant indexes. You can read many articles about... 22 July 2024 7 min read
Edward Pollack in T-SQL Programming XML Performance Tuning and Added Options SQL Server provides a variety of ways to tune XML so that it provides consistent performance, consumes less space, all... 21 June 2024 12 min read
T-SQL Programming Edward Pollack in T-SQL Programming Effective Strategies for Storing and Parsing XML in SQL Server XML is a common storage format for data, metadata, parameters, or other semi-structured data. Because of this, it often finds... 03 June 2024 21 min read
T-SQL Programming Aaron Bertrand in T-SQL Programming Snake draft sorting in SQL Server, part 4 Part of a series: [ Part 1 | Part 2 | Part 3 | Part 4 ] In the previous... 27 May 2024 9 min read
T-SQL Programming Aaron Bertrand in T-SQL Programming Snake draft sorting in SQL Server, part 3 Part of a series: [ Part 1 | Part 2 | Part 3 | Part 4 ] In part 2... 15 May 2024 5 min read
T-SQL Programming Aaron Bertrand in T-SQL Programming Snake draft sorting in SQL Server, part 2 Part of a series: [ Part 1 | Part 2 | Part 3 | Part 4 ] In my previous... 15 April 2024 7 min read
T-SQL Programming Aaron Bertrand in T-SQL Programming Snake draft sorting in SQL Server, part 1 Part of a series: [ Part 1 | Part 2 | Part 3 | Part 4 ] I recently had... 12 April 2024 8 min read
T-SQL Programming Aaron Bertrand in T-SQL Programming Pagination and ordering by large values Pagination is a technique for limiting output. Think of Google search results, shopping the electronics category on Amazon, or browsing... 25 March 2024 9 min read
