&gt;&gt;Except that every database has their own flavour of SQL<p>Sure, but simple queries, like the poster above provides as an example, have been standardized for like decades, and work the same across pretty much every credible RDBMS.<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10577996" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10577996</a>