13.6.5 Flow Control Statements

13.6.5.1 CASE Statement

13.6.5.2 IF Statement

13.6.5.3 ITERATE Statement

13.6.5.4 LEAVE Statement

13.6.5.5 LOOP Statement

13.6.5.6 REPEAT Statement

13.6.5.7 RETURN Statement

13.6.5.8 WHILE Statement

MySQL supports the IF, CASE, ITERATE, LEAVE LOOP, WHILE, and REPEAT constructs for flow control within stored programs. It also supports RETURN within stored functions.

Many of these constructs contain other statements, as indicated by the grammar specifications in the following sections. Such constructs may be nested. For example, an IF statement might contain a WHILE loop, which itself contains a CASE statement.

MySQL does not support FOR loops.