pzInsKey in Pega:It is a Reserved property they dervie from Ultimate Base Class (at Base class)

and so It is Available For Every Class and The pzInsKey columm and pzInsKey columm as a

primary  of a table.

pzIns key as well as Primary key type (uniq values in the Data table)

Forign key is duplicate values identified in the data table

creation of Data table  we can tick mark first Row that is the Primary key of

Data Table.

Only one primary key in the Data table.