What is SQL? and History of SQL?

 

What is SQL?

• SQL stands for Structured Query Language and is a Programming language.
• SQL is used to manage and manipulate relational databases.
• SQL is a tool for organizing, managing, and retrieving archived data from a database.

History of SQL?

In June 1970, Dr. E. F. Codd published the paper, “A Relational Model of Data for Large Shared Data Banks,” in the Association of Computer Machinery (ACM) journal, Communications of the ACM.

Codd’s model, now accepted as the definitive model for relational database management systems (RDBMS), inspired the development of the language Structured English Query Language (SEQUEL) by IBM Corporation, Inc.

SEQUEL, later known as SQL (still pronounced “sequel”), was designed to implement Codd’s model. In 1979, Relational Software, Inc. (now Oracle), introduced the first commercially available implementation of SQL.