The following slides explain Oracle object-relational SQL.

Slide 13.1: Oracle object-relational SQL
Slide 13.2: Creating object types: syntax
Slide 13.3: Creating object types
Slide 13.4: Creating cyclic object types
Slide 13.5: A relational table with object types
Slide 13.6: A relational table with object types (cont.)
Slide 13.7: An object table
Slide 13.8: Object tables vs relational tables with objects

Slide 13.9: Object-relational examples
Slide 13.10: Object references
Slide 13.11: Object references (cont.)
Slide 13.12: Object references (cont.)
Slide 13.13: Constructor methods
Slide 13.14: Constructor methods (cont.)
Slide 13.15: Object type dependencies
Slide 13.16: Data dictionary and objects
Slide 13.17: Data dictionary and objects (cont.)

  ☂ References

Slide 13.a: Object-relational features of Oracle







      “There are three things all wise men fear:    
      the sea in storm, a night with no moon,    
      and the anger of a gentle man.”    
      ― Patrick Rothfuss, The Wise Man’s Fear