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EFElie Fayaddatainbites.hashnode.devJun 26, 2025 · 15 min read

Mastering SQL Recursion: From Theory to Practice with Key Use Cases (Part 3)

Introduction In the first article of this three-part series, we explored recursion: what it is, why it’s crucial for processing hierarchical data, and how it can be implemented in SQL. In the second a

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SSSergey Shishkinserj-aleks.hashnode.devMay 30, 2025 · 2 min read

ОО концепция

Группа функций (переменных, символов …), с помощью которых реализуется “объектно-ориентированное расширение” (обращаю внимание, что автор системы старается избегать термина ООП, то есть объектно-ориентированного программирования или проектирования ка...

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EFElie Fayaddatainbites.hashnode.devApr 24, 2025 · 16 min read

Mastering SQL Recursion: Advanced Techniques for Handling Hierarchies, Cycles, and Optimization (Part 2)

Introduction If you've ever worked with hierarchical or tree-structured data, you’ve probably hit the limitations of standard SQL. That’s where recursive SQL queries come in! In the first article of t

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EFElie Fayaddatainbites.hashnode.devApr 3, 2025 · 13 min read

Mastering SQL Recursion: A Beginner’s Guide to Recursive CTEs and Hierarchical Data in SQL (Part 1)

Introduction If you've ever worked with hierarchical or tree-structured data, you’ve probably hit the limitations of standard SQL. Trying to define and implement these relationships with joins quickly

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SSSergey Shishkinserj-aleks.hashnode.devMar 2, 2025 · 2 min read

*Class и class

*Class - глобальная переменная, содержащая текущий класс. class - определяет sym как класс с суперклассом(ами) typ. В качестве побочного эффекта глобальная переменная *Class устанавливается в obj. https://picolisp.tiddlyhost.com/#class : (class +Test...

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SASimon Asikablog.uniauth.comDec 4, 2023 · 6 min read

Using Nested Set Model to Build Hierarchical Data

I've been using the Nested set model for a while in Windwalker Framework, as it's built into its core ORM package. However, I realized that there isn't much discussion about this model in the dev community. The Nested set model is a data model design...

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Trending tags this week

Mastering SQL Recursion: From Theory to Practice with Key Use Cases (Part 3)

ОО концепция

Mastering SQL Recursion: Advanced Techniques for Handling Hierarchies, Cycles, and Optimization (Part 2)

Mastering SQL Recursion: A Beginner’s Guide to Recursive CTEs and Hierarchical Data in SQL (Part 1)

*Class и class

Using Nested Set Model to Build Hierarchical Data