SQL is the acronym for
Structured Query Language, which is defined by
ANSI standards in the United States and by X/OPEN standards in Europe.
The way into a relational database is through a query
language, which is a set of operators,
expressions, and statements that let you
manipulate the database in various ways.
You create queries, as well as other kinds of statements,
in IMAGE/SQL by using SQL.
You issue the statements directly through an interactive
command processor (ISQL) or indirectly through an application program.
SQL includes statements that let you do the following:
Regulate concurrent access
SQL statements are shown in uppercase letters
(for example, SELECT) in this manual.
