This part of the book (Chapters 6 through 13) describes the building block packages of PL/Vision. These are low-level packages upon which other packages in PL/Vision are built; you can use them to enhance your development in various ways. Examples of building block packages include string parsers, a list manager and an interface to PL/SQL tables.
Chapter 6:
PLV: Top-Level Constants and Functions
Chapter 7:
p: A Powerful Substitute for DBMS_OUTPUT
Chapter 8:
PLVtab: Easy Access to PL/SQL Tables
Chapter 9:
PLVmsg: Single-Sourcing PL/SQL Message Text
Chapter 10:
PLVprs, PLVtkn, and PLVprsps: Parsing Strings
Chapter 11:
PLVobj: A Packaged Interface to ALL_OBJECTS
Chapter 12:
PLVio: Reading and Writing PL/SQL Source Code
Chapter 13:
PLVfile: Reading and Writing Operating System Files