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ENTITY time_interval_with_bounds SUBTYPE OF (time_interval); primary_bound : OPTIONAL date_time_or_event_occurrence; secondary_bound : OPTIONAL date_time_or_event_occurrence; duration : OPTIONAL time_measure_with_unit; WHERE WR1: NOT (EXISTS(secondary_bound) AND EXISTS(duration)); WR2: EXISTS(primary_bound) OR EXISTS(secondary_bound); END_ENTITY; -- time_interval_with_bounds |
Entity data types and their attributestime_intervalid: identifier; name: label; (OPT) description: text; time_interval_with_bounds (OPT) primary_bound: date_time_or_event_occurrence; (OPT) secondary_bound: date_time_or_event_occurrence; (OPT) duration: time_measure_with_unit; |
Global rules for this entity data type- |