Definicja time constraint (PT)

Co znaczy TIME CONSTRAINT (PT):

A rule that determines whether collisions in time data are allowed, and if so, specifies how the system reacts to such collisions.

Time contraints comprise the following:

Time constraint classes that determine which collisions in time data records are allowed Time constraint table that contains the time-based collisions allowed in the time data records Time constraint indicator that displays whether a new data record that collides with an existing time data record can be transferred to the system or whether the transfer is prohibited