SQL Simply means structured query language, it lets you access and manipulate the database. SQL became the standard of the American National Standard Institute (ANSI) in 1986 and of the International Organization for Standardization (ISO) IN I987.
What can SQL do?
SQL can execute queries against a database, retrieve data from a database insert, update delete records in a database. it can create new databases, tables, and views in a database.
although SQL is an ANSI /IOS standard they all support at least the major commands, such as
SELECT, UPDATE, DELETE, INSERT WHERE in a similar manner
NB; Most SQL database has their own proprietary in addition to the SQL standard.