In this chapter, you will see details on the use of abstract datatypes. This chapter covers topics such as security administration for abstract datatypes and the indexing of abstract datatype attributes. The creation of methods for abstract datatypes is also shown, along with the use of object views and INSTEAD OF triggers.
To use the information provided in this chapter, you should be familiar with datatypes (see Chapter 4), views (see Chapter 18), the grant command (see Chapter 19), indexes (see Chapter 17), and PL/SQL procedures and triggers (see Chapters 29, 30, and 31). Elements of each of these topics play a part in the implementation of an object-relational database.