Date

An ISO 8601 compliant date type.

Syntax

The date literal consists of the following values, separated by a -:

  • either a four-digit year or a sign with any number of digits for the year (e.g. +252525 meaning year 252525),

  • a two-digit month of the year,

  • and a two-digit day of that month.

Example date literals
2024-03-30
+802701-09-21

Defining a date valued attribute

define
  attribute publish-date value date;

Inserting a date valued attribute

insert
  $_ isa publish-date 2025-01-10;