SQL (Structured Query Language) is a computer language used to communicate with databases. It lets you access and manipulate databases.

• SQL became a standard of the American National Standards Institute (ANSI) in 1986 and of the International Organization for Standardization (ISO) in 1987.

What Can SQL do?

• SQL can execute queries against a database.
• SQL can retrieve data from a database.
• SQL can insert records into a database.
• SQL can update records in a database.
• SQL can delete records from a database.
• SQL can create new databases.
• SQL can create new tables in a database.
• SQL can create stored procedures in a database.
• SQL can create views in a database.
• SQL can set permissions on tables, procedures, and views.

Learn more: https://www.w3schools.com/sql/default.asp

See also:

1. Understanding OCL with reference to SQL,
2. How your classes are stored in the SQL database when using MDriven,
3. Part 5 Searching in databases.