Checking the Class Hierarchy
After completing the object schema, make sure no information has been lost. To do this, check the derived class hierarchy against the original views defined in the relational schema.
When checking the hierarchy, remember that class hierarchies explicitly maintain the types of data so it is not necessary to have type codes. See type codes.
Next: Support View equivalent from the class hierarchy. Also see the related content below.
More detail for the current topic: Checking the Class Hierarchy
- Support View Equivalent from the Class Hierarchy
- Professor View Equivalent from the Class Hierarchy
- Workstudy View Equivalent from the Class Hierarchy
- Employee View Equivalent from the Class Hierarchy
More on the general topic: Using Existing Relational Schema