
104 Unleashing DB2 10 for Linux, UNIX, and Windows
7.1 Overview of Oracle compatibility
SQL is a programming language for the manipulation and retrieval of data in
relational database management systems (RDBMS). SQL became a standard of
the American Standards Institute (ANSI) in 1986, and of the International
Organization for Standards (ISO) in 1987. Since its inception, the SQL standard
has proven to be a dynamic document that has been enhanced with various
features over the years. Although all major RDBMS products use SQL, significant
issues exist when trying to migrate code between products. These issues are
often attributed to the large ...