BOOLEAN data types

This page documents the preview version (v2.21). Preview includes features under active development and is for development and testing only. For production, use the stable version (v2024.1). To learn more, see Versioning.

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 }