postgres-intro

Question 1

What is PostgreSQL and what are some alternative relational databases?

Answer 1

is an open source Relational Database management system. it is the most advanced open source databased of its kind. MongoDB, Redis, Neo4j (nosql)

Question 2

What are some advantages of learning a relational database?

Answer 2

when working with datas that are interconnected to each other. Something with relationship.

They provide good guarantees about data integrity.
Can store and modify data in a way that makes data corruption as unlikely as possible.

Question 3

What is one way to see if PostgreSQL is running?

Answer 3

sudo service postgresql status also in top