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OCA Oracle Database SQL Exam Guide (Exam 1Z0-071) by Steve O'Hearn

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6

Using Conversion Functions and Conditional Expressions

CERTIFICATION OBJECTIVES

6.01     Describe Various Types of Conversion Functions

6.02     Use the TO_CHAR, TO_NUMBER, and TO_DATE Conversion Functions

6.03     Apply General Functions and Conditional Expressions in a SELECT Statement

   ✓        Two-Minute Drill

Q&A     Self Test

This chapter looks at the topics of conversion functions and conditional expressions. Conversion functions perform data type transformation from one general type such as numeric to another such as text. Conditional expressions perform evaluations and return data using criteria you specify in the context of SQL ...

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