2.2.3.2.20 Data Types in DRM Expressions

A Digital Rights Management expression, and the constants used in it, can have one of three data types: DATETIME (section 2.2.3.2.20.1), LONG (section 2.2.3.2.20.2), or STRING (section 2.2.3.2.20.3). Special rules for casting between data types (section 2.2.3.2.20.4) apply.