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| Part V |

# Part V: New PL/SQL8 Features

Part V of this book contains the main discussion of the new features of Oracle8 that are relevant to PL/SQL.

- Chapter 18, Object Types, describes the Oracle "object-relational model" and how the object features work.

- Chapter 19, Nested Tables and VARRAYs, examines the two types of "collection" structures introduced in Oracle8.

- Chapter 20, Object Views, describes object views, which let you use object features with conventional relational tables.

- Chapter 21, External Procedures, discusses how you can call out to non-PL/SQL programs from within Oracle.

17.8 Examples of Embedded PL/SQL |  | 18. Object Types

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