The core theoretical principle distinguishing DateInPeriod from DatesBetween in temporal data aggregation lies in their fundamental handling of relative versus absolute filtering contexts. While the former operates via a relative period mechanism that automatically includes boundary dates within the calculated span, the latter requires explicit specification of start and end boundaries where the calculation logic extends beyond or fails to include specific calendar days depending on input parameters such as month-end rollovers. This distinction defines two distinct modes of temporal constraint application in dimensioned fact tables: automatic relative expansion versus fixed interval exclusion/inclusion, which are critical for ensuring precise date range semantics without unintended data inclusion errors.
The core theoretical principle distinguishing DateInPeriod from DatesBetween in temporal data aggregation lies in their fundamental handling of relative versus absolute filtering contexts. While the …