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What are the differences between all of the different types of SQL? I hear of PostgreSQL, SQLite, MySQL, SQL, .... What are the differences between them?
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Answer: The main difference between SQL and MS SQL is that SQL is a query language that is used in relation databases whereas MS SQL Server is itself a relational database management system (RDBMS) developed by Microsoft.
SQL Dialects: SummarySQL Server, Oracle, MySQL, and PostgreSQL are all different databases that have their own slightly different SQL dialects. The SQL Standard is an official ANSI/ISO document that defines the syntax of SQL. No database is fully compatible with the standard.
There Are Many Different “Flavors” of SQL Some of the best known are SQL Server, PostgreSQL, Oracle, MySQL, and SQLite.
SQL is Structured Query Language is a database computer language designed for managing data in relational database management systems (RDBMS).
PostgreSQL is an object-relational database management system (ORDBMS).1 It is released under a BSD-style license and is thus free software. As with many other open-source programs, PostgreSQL is not controlled by any single company, but has a global community of developers and companies to develop it.
SQLite is an ACID-compliant embedded relational database management system contained in a relatively small (~225 KB1) C programming library. The source code for SQLite is in the public domain.
MySQL (pronounced /maɪˌɛskjuːˈɛl/1 My S-Q-L, or "My sequel" /maɪˈsiːkwəl/) is a relational database management system (RDBMS)2 which has more than 6 million installations. 3 MySQL stands for "My Structured Query Language". The program runs as a server providing multi-user access to a number of databases.
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