This blog post will visit an interesting PostgreSQL operator, UNION. Many times, I myself forget about UNION. As of now, I don’t necessarily have a constant use case for it. But through curiosity, exploration, study, and practice I want to know more about it. Let’s learn about this operator within PostgreSQL.
On this website we use first or third-party tools that store small files (<i>cookie</i>) on your device. Cookies are normally used to allow the site to run properly (<i>technical cookies</i>), to generate navigation usage reports (<i>statistics cookies</i>) and to suitable advertise our services/products (<i>profiling cookies</i>). We can directly use technical cookies, but <u>you have the right to choose whether or not to enable statistical and profiling cookies</u>. <b>Enabling these cookies, you help us to offer you a better experience</b>.