PC_ work
1.     Workbasket assignments are stored in a single pr_assign_workbasket table.
2.     Worklist assignments are stored in a single pr_assign_worklist table.
3.     The Work- base class is mapped to the pc_work table, a table with columns that represent all the work object properties that need to be exposed for flow processing to function correctly. Map your work object classes to either the pc_work stable or another table that has the same columns.
4.     The Data- base class is mapped to the pr_data table. Map your data classes to either the pr_data table or another table that has the same columns.
5.     all Rule related data will  be stored in pr4_pegarules.
6.    The pr_other table is the last resort or default destination for saved insstances that belong to a class that is not mapped to any other tables.