text: **Chapter 4. Database structure**
  
  In this chapter, we describe the IBM Content Manager OnDemand (Content Manager 
  OnDemand) database structure and relationships between the tables. We list the system 
  control tables and the important data table structures. We explain the relationship between 
  the tables when you load data, show how a search is performed on the database tables, 
  describe the system log, and describe special considerations for DB2 on z/OS. 
  
  In this chapter, we cover the following topics: 
  
  (cid:2) System control tables 
  (cid:2) Main data table structures 
  (cid:2) Relationship between tables when data is loaded 
  (cid:2) Search sequence 
  (cid:2) System log 
  (cid:2) Database creation and relationships on z/OS 