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OCA/OCP Oracle Database 11g All-in-One Exam Guide with CD-ROM : Exams 1Z0-051, 1Z0-052, 1Z0-053 by Bob Bryla, Roopesh Ramklass, John Watson

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CHAPTER 10Single-Row and Conversion Functions

Exam Objectives

In this chapter you will learn to

• 051.3.1 Describe Various Types of Functions Available in SQL

• 051.3.2 Use Character, Number, and Date Functions in SELECT Statements

• 051.4.1 Describe Various Types of Conversion Functions That Are Available in SQL

• 051.4.2 Use the TO_CHAR, TO_NUMBER, and TO_DATE Conversion Functions

• 051.4.3 Apply Conditional Expressions in a SELECT Statement

The functions discussed in this chapter are commonly used built-in PL/SQL programs, packaged and supplied by Oracle. Some operate on numeric, date, and character data, while others convert data between the different scalar data types. Functions can be nested, and some functions are aimed at simplifying ...

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