Overview:
The full name of SQL is Structured Query Language, its
pronunciation is ‘SEQUEL’. SQL is Non-Procedural* language and designed for
managing data in a RDBMS* ( Relational Database Management System ).
History:
It’s developed at IBM by Raymond F. Boyce
& Donald D. Chamberlin in the year of 1970. The acronym 'SEQUEL' was later
changed to SQL because "SEQUEL" was a trademark of the UK-based
Hawker Siddeley aircraft company.
In the late 1970, Oracle Corporation Ltd [Then known as
Relational Software Inc] realized the
potential of the thought mentioned by Chamberlin & Boyce and developed
their own SQL-based RDBMS, thinking of
selling it to C.I.A, U.S Navy and other U.S govt organizations. In June 1979,
Oracle launched the first commercially available implementation of SQL, Oracle
V2 for VAX computers. IBM also launched System/38, SQL/DS and DB2 just after launching
of Oracle V2.
