Exists vs in

Classic blog post by Gail explaining: https://sqlinthewild.co.za/index.php/2009/08/17/exists-vs-in/ IN / EXISTS are comparable in plans and runtime. The blog further links to comparisons for IN vs. INNER JOIN, NOT EXISTS vs. LEFT JOIN, NOT EXISTS vs. NOT IN. Summary - performance is not too different so use what semantically makes the most sense. WHERE ... IN ... makes more sense if that is what you're checking.



Connected Notes

Knowledge Graph

Controls

Hub Nodes
Categories
Notes