Part III of this book presents the many built-in or predefined functions supported by PL/SQL. These chapters contain detailed descriptions and many extended examples of the dozens of built-in programs that you can use immediately in your PL/SQL applications.
Chapter 11, Character Functions, describes the functions that allow you to parse names, concatenate strings, and perform many other character operations.
Chapter 12, Date Functions, presents the functions that let you manipulate calendar dates in your PL/SQL programs.
Chapter 13, Numeric, LOB, and Miscellaneous Functions, describes the functions you use to manipulate numbers and perform a variety of other operations.
Chapter 14, Conversion Functions, discusses the functions that let PL/SQL convert from one datatype to another.
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