July 2018
Beginner
536 pages
12h 32m
English
Chapter 7: Performing Conditional Processing
7.2 The IF and ELSE IF Statements
7.3 The Subsetting IF Statement
7.5 Using a SELECT Statement for Logical Tests
7.6 Using Boolean Logic (AND, OR, and NOT Operators)
7.7 A Caution When Using Multiple OR Operators
7.9 Some Useful WHERE Operators
This chapter describes the tools that allow programs to “make decisions” based on data values. For example, you may want to read a value of Age and create a variable that represents age groups. You may want to determine if values for a particular variable are within predefined limits. Programs that perform any of these operations require conditional processing—the ...