Views
Introduction
When evaluating data, we distinguish between the logical and the physical view.
The physical view corresponds to the form in which the infotype data is stored in the HR tables. This data is stored in infotype records with a validity period.
In the logical view, the validity periods of individual fields are determined for several infotype records. For example, for an evaluation, the time period during which an employee worked at a particular job may be important, irrespective of whether a company code, personnel area or cost center change occurred during this time.
Data from several infotypes can also be provided for a specific partial period. When calculating partial payroll periods, it is especially important that data on basic pay, work schedule and cost distribution are provided for the relevant partial period.
These two types of logical views are implemented in the projection and join.