Oracle has tons of &quot;features&quot; that postgres lacks:<p>* empty string == NULL in oracle<p>* ROWNUM: it&#x27;s kinda like a limit, but not<p>* DUAL: hah. postgres eat your heart out.<p>And of course there are business practice differences:<p><a href="http:&#x2F;&#x2F;www.businessinsider.com.au&#x2F;oracle-customer-explains-audit-threats-2015-9" rel="nofollow">http:&#x2F;&#x2F;www.businessinsider.com.au&#x2F;oracle-customer-explains-a...</a><p>... but tongue out of cheek, if you can afford it, Oracle has solutions for just about every database problem in just about every vertical domain. They have really good engineers, really good testing, and they&#x27;re #1 for a reason