The history of SQL begins in an IBM laboratory in San Jose, California, where SQL was developed in the late 1970s.
The initials stand for Structured Query Language, and the language itself is often referred to as “sequel.”
It was originally developed for IBM’s DB2 product (a relational database management system, or RDBMS, that can still be bought today for various platforms and environments). In fact, SQL makes an RDBMS possible.
SQL is a nonprocedural language, in contrast to the procedural or third-generation languages (3GLs) such as COBOL and C that had been created up to that time.
- 1970 − Dr. Edgar F. “Ted” Codd of IBM is known as the father of relational databases. He described a relational model for databases.
- 1974 − Structured Query Language appeared.
- 1978 − IBM worked to develop Codd’s ideas and released a product named System/R.
- 1979 – Relational Software, Inc. (now Oracle) introduced the first commercially available implementation of SQL.
- 1986 − IBM developed the first prototype of a relational database and standardized by ANSI. The first relational database was released by Relational Software which later came to be known as Oracle.
Today, SQL is accepted as the standard RDBMS (Relational Database Management System) language.