retrocomputing

MySQL and PostgreSQL are prominent open-source SQL databases, each with distinct strengths. MySQL, now partially commercial under Oracle, has a fork called MariaDB to maintain its open-source status. MySQL supports various storage engines like InnoDB, MyISAM, and in-memory, with InnoDB being optimal for data integrity and speed. PostgreSQL, developed by Michael Stonebraker and open-sourced in 1996, is known for handling complex queries and large datasets effectively. MySQL complies with the SQL:2003 standard, while PostgreSQL is fully compliant with SQL:2011 and offers extensive custom data types. MySQL's replication includes asynchronous, semisynchronous, and group replication, whereas PostgreSQL features streaming, synchronous, logical replication, and hot standby. Both databases provide robust security features, including various authentication methods, role-based access control, and encryption. MySQL is often chosen for web and transactional applications, while PostgreSQL is preferred for data-intensive and analytical systems. David "Walker" Aldridge is a programmer with 40 years of experience in multiple languages, a systems admin, and an infosec blue team member with an interest in retrocomputing.