Relationships among the sample tables

Relationships among the sample tables are established by foreign keys in dependent tables that reference primary keys in parent tables.

The following figure shows relationships among the sample tables. You can find descriptions of the columns with the descriptions of the tables.

Figure 1. Relationships among tables in the sample application
Begin figure description. Arrows indicate parent and dependent table relationships and indicate the delete rules between the tables (CASCADE, SET NULL, or RESTRICT). End figure description.