Chapter 6. Conditional Control: Case Statements

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Oracle® PL/SQL® Interactive Workbook, Second Edition
By Benjamin Rosenzweig, Elena Silvestrova
Table of Contents


Chapter Objectives

In this Chapter, you will learn about:

  • CASE Statements

  • CASE Expressions

  • NULLIF and COALESCE Functions

In the previous chapter, you explored the concept of conditional control via IF and ELSIF statements. In this chapter, you will continue by examining different types of CASE statements and expressions. They are new PL/SQL features and are not supported by PL/SQL in versions prior to Oracle 9i. You will also learn how to use NULLIF and COALESCE functions that are considered an extension of CASE.


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    Oracle PL. SQL Interactive Workbook
    Oracle PL/SQL Interactive Workbook (2nd Edition)
    ISBN: 0130473200
    EAN: 2147483647
    Year: 2002
    Pages: 146

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