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Oracle by Elena Silvestrova Rakhimov, Benjamin Rosenzweig

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Chapter 9 Exceptions

CHAPTER OBJECTIVES

In this chapter, you will learn about

• Exception scope

• User-defined exceptions

• Exception propagation

In the preceding chapter, you explored the concept of error handling and built-in exceptions. In this chapter you continue by examining whether an exception can catch a runtime error occurring in the declaration, executable, or exception-handling section of a PL/SQL block. You also will learn how to define your own exceptions and how to reraise an exception.

Lab 9.1 Exception Scope

LAB OBJECTIVE

After completing this lab, you will be able to

• Understand the scope of an exception

You are already familiar with the term scope—for example, the scope of a variable. Even though variables and exceptions ...

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