We check execution plans and benchmark results to see if using a LIMIT clause is useful when checking for existence of N values in SQL| Java, SQL and jOOQ.
Cost Based Optimisation is the de-facto standard way to optimise SQL queries in most modern databases. It is the reason why it is really really hard to implement a complex, hand-written algorithm i…| Java, SQL and jOOQ.
Starting with jOOQ 3.19, implicit path joins may skip unnecessary tables in the join tree, when no columns are referenced from those tables| Java, SQL and jOOQ.
The standard SQL FILTER clause is "just" syntax sugar for an equivalent CASE expression in an aggregate function. This article shows which performs better on PostgreSQL 15| Java, SQL and jOOQ.