This field is used to define if the loading logic for the dimensions table must be :
- of the type Incremental(on each triggering, the modifications are copied from the source table). Unlike the facts table, where a database trigger is used, in the case of the dimensions, the date of the last modification or creations is used, which must therefore must exist for the dimension tables.
- or of the type Delete and replace (all the lines in the table are deleted prior to completely recreating them).