postgres-intro

Question 1

What is PostgreSQL and what are some alternative relational databases?

Answer 1

a relational database - there are nonSQLs such as MongoDB, Redis and Neo4j

Question 2

What are some advantages of learning a relational database?

Answer 2

very flexible - you can relate data that you didn’t plan in the beginning -
it supports good guarantees about data integrity - you can set up the database to reject bad data and half written data

Question 3

What is one way to see if PostgreSQL is running?

Answer 3

sudo service postgresql status or top command