SQL

Overview

Structured Query Language (SQL) is a domain-specific language used to manage data, especially in a relational database management system (RDBMS). It is particularly useful in handling structured data, i.e., data incorporating relations among entities and variables. https://en.wikipedia.org/wiki/SQL

Most interesting RDMS

List of Relational database management systems (RDMS) https://en.wikipedia.org/wiki/Category:Relational_database_management_systems

https://en.wikipedia.org/wiki/Oracle_Database

https://en.wikipedia.org/wiki/Microsoft_SQL_Server

https://en.wikipedia.org/wiki/PostgreSQL

https://en.wikipedia.org/wiki/Category:MariaDB

https://en.wikipedia.org/wiki/Category:MySQL

https://en.wikipedia.org/wiki/HSQLDB

https://en.wikipedia.org/wiki/H2_(database)

https://en.wikipedia.org/wiki/SQLite

PostgresSQL

PostgreSQL also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance. PostgreSQL features transactions with atomicity, consistency, isolation, durability (ACID) properties, automatically updatable views, materialized views, triggers, foreign keys, and stored procedures. It is supported on all major operating systems, including Linux, FreeBSD, OpenBSD, macOS, and Windows, and handles a range of workloads from single machines to data warehouses or web services with many concurrent users. https://en.wikipedia.org/wiki/PostgreSQL

Admin GUI https://www.pgadmin.org/

MySQL, MariaDB

Admin GUI

https://www.heidisql.com/ HeidiSQL is free software for people who work with databases, and aims to be intuitive to use. "Heidi" lets you connect to a variety of databases, like MariaDB, MySQL, Microsoft SQL, PostgreSQL, SQLite, Interbase and Firebird. Once you are connected, you can edit data and structures in these databases. Invented in 2002 by Ansgar, HeidiSQL is still a popular tool for MariaDB and MySQL, and actively maintained