MySQL in a Nutshell, 2nd Edition

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Chapter 14. Flow Control Functions

MySQL has a few built-in flow control functions that you can use in SQL statements for more precise and directed results. This chapter provides the syntax of function and gives examples of their use. For the examples in this chapter, a fictitious database for a stock broker is used.

The following functions are covered in this chapter:

CASE, IF(), IFNULL(), ISNULL(), NULLIF().

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