UniBasic Commands Reference - Rocket Software

IF/THEN/ELSE
Syntax
IF expr THEN statements [ELSE statements]
IF expr THEN
statements...
END [ELSE
statements...
END]
IF expr ELSE statements
IF expr ELSE
statements
END
Description
The UniBasic IF/THEN/ELSE command executes one of two blocks of statements
based on a conditional expression. If expr is true, UniData executes the first group of
statements. If expr is false, UniData executes the second group of statements.
Points to Remember when Writing IF/THEN/ELSE
Statements
The ELSE clause is optional.
An IF/THEN/ELSE structure can occupy either a single line or several lines. When
coding single- line and multiline statements:
The single-line form does not require an END before the ELSE.
In the multiline form, each clause must contain at least one statement. If you
do not want to take any action, use the NULL command. THEN and ELSE
clauses must be delimited by END.
IF/THEN/ELSE 1-368