3 ms·

In that sense, HAVING and WHERE being different is basically a "free" subquery without allowing subqueries. One inner σ (WHERE) and one outer σ (HAVING). If s

by maweki 5y ago

In that sense, HAVING and WHERE being different is basically a "free" subquery without allowing subqueries. One inner σ (WHERE) and one outer σ (HAVING). If subqueries are allowed, then you don't need that.