Conteúdo sobre Join em SQL, com explicação, exemplos e exercícios em MySQL

Tree Utils is the library to convert and manipulate with tree-like structures.

Lab SQL Self and cross join

Примеры кода SQL-запросов из наиболее сложных решённых задач. Есть полное описание задач и ссылки на источники.

Human Resources database

[PYTHON, FLASK, MYSQL] Connects a flask application to a MySQL database. Uses self join relationships. Shows understanding of validation with users and usernames. Demonstrates CRUD SQL manipulation and execution.

Find duplicates users in Sybase within Sisis Sunrise

Self join case for rails.

A repository of more advanced SQL Server queries, including Common Table Expressions (CTEs) and self-joins.

ActiveRecord Self-Join Association

[MySQL ERD, DB, and quieries] Demonstrates understanding of self join relationship in ERD. SELF JOIN: many to many to same table. In this case.. A user can have a friend (another user from the same table).