What Is SQL? [ Up and Running with ALLBASE/SQL ] MPE/iX 5.0 Documentation
Up and Running with ALLBASE/SQL
What Is SQL?
The way into a relational database is through a query language--which is
a set of operators, expressions, and commands that let you manipulate the
database in various ways. You create queries as well as other kinds of
commands in ALLBASE/SQL by using SQL (Structured Query Language); and you
issue the commands directly, through an interactive command processor, or
indirectly, through an application program.
SQL includes commands that let you do the following:
* Create databases.
* Access databases.
* Provide security.
* Promote data integrity.
* Regulate concurrent access.
SQL commands are printed in capitals (for example, SELECT) in this book
and throughout the ALLBASE/SQL document set.
MPE/iX 5.0 Documentation