Few queries that might help you in PostgreSQL

Image source — en.wikipedia.org

It’s been 2 years since I am working as a QA(Quality Assurance) engineer by profession in an MNC. I am a manual tester and I do functional and database level testing. I called myself a learner because I am still in the growing stage, there are many things which I am unaware of. When I was in college, I had zero ideas that PostgreSQL does exists. I have stuck many times and, I am shamelessly saying that I have…