control-flow-functions.md

title	Control Flow Functions
summary	Learn about the Control Flow functions.
category	reference
aliases	/docs/dev/reference/sql/functions-and-operators/control-flow-functions/

Control Flow Functions

TiDB supports all of the control flow functions available in MySQL 5.7.

Name	Description
CASE	Case operator
IF()	If/else construct
IFNULL()	Null if/else construct
NULLIF()	Return NULL if expr1 = expr2