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Part IV: Recursive CTEs Beyond Hierarchies: Graph Traversal and Shortest Paths in PostgreSQL

PostgreSQL is the natural next stop in this series because it brings the traversal problem back into a traditional relational database while using the SQL-standard WITH RECURSIVE form. The earlier SQL ...
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Day 17 – Recursive Queries with WITH RECURSIVE in PostgreSQL

Suppose you want to find all managers above an employee in the org structure. WITH RECURSIVE org_chart AS ( SELECT id, name, manager_id FROM employees WHERE id = 101 ...
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02.recursive-cte.sql

02.recursive-cte.sql Top Code Blame 104 lines (81 loc) · 2.83 KB Raw Open symbols panel Edit and raw actions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 ...