What is MySQL
MySQL is an open-source relational database management system (RDBMS). Its name is a blend of “My”, the name of prime supporter Michael Widenius’ little girl, and “SQL”, the abbreviation for Structured Query Language. Mastering MySQL is a must for programmers. Especially when associated with web programming that (almost) all use MySQL as a database.
What is PostgresSQL
PostgreSQL is powerful, open-source advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. It is also one of the most used databases in the industry for production and deployment.