Hi Siva,
The relationship between views and the list of all view and its schema are documented in the man pages, which can be accessed as follows.
Control Center-> Help->General Help->Database Schema,
Under which you will find the following which should help you in combining two views
Database schema for DataFabric Manager nonhistoric data
Database schema for DataFabric Manager historic data
Relationship among fields of various database views
Regards
adai