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SQL

SQLShort for Structured Query Language, SQL, originally known as SEQUEL (Structured English QUEry Language), was developed by Dr. Edgar F. Codd at the IBM research center in 1974. Later shortened to SQL, but still pronounced as sequel, SQL has become the de facto standard database language.

The first commercial version of SQL was introduced in 1979 by Oracle. Today, there are three standards: SQL89 (SQL1), SQL92 (SQL2), and SQL99 (SQL3).

Also see: Database, DDL, DML, MySQL, Oracle database, Primary key, RDBMS, SQL injection, SQL Server, Synonym