BOOLEAN data types

Synopsis

The BOOLEAN data type represents three different states: TRUE, FALSE, or NULL.

Description

type_specification ::= { BOOLEAN | BOOL }
literal ::= { TRUE | true | 't' | 'y' | 'yes' | 'on' | 1 |
              FALSE | false | 'f' | 'n' | 'no' | 'off' | 0 }