正在阅读：MySQL 5.0 新特性教程 存储过程:第三讲MySQL 5.0 新特性教程 存储过程:第三讲

CREATE PROCEDURE p17 ()

label_1: BEGIN

label_2: WHILE 0 = 1 DO LEAVE label_2; END

WHILE;

label_3: REPEAT LEAVE label_3; UNTIL 0 =0

END REPEAT;

label_4: LOOP LEAVE label_4; END LOOP;

END; //

CREATE PROCEDURE p18 ()

label_1: BEGIN

label_2: WHILE 0 = 1 DO LEAVE label_2; END

WHILE label_2;

label_3: REPEAT LEAVE label_3; UNTIL 0 =0

END REPEAT label_3 ;

label_4: LOOP LEAVE label_4; END LOOP

label_4 ;

END label_1 ; //