mysql存储过程中不能使用return的解决办法_MySQL
bitsCN.com
大家都知道，mysql 的存储过程是不能使用 return 语句的，只有存储函数才有此功能。那么，有没有替代 return 的关键字呢？ 没有！ 像 exit, quit 之类的关键字全没有！ 怎么办？ 使用功能稍次一些的 leave 关键字吧，此关键字可以模仿 return 的行为。 举一个例子吧： SET FOREIGN_KEY_CHECKS=0;-- ------------------------------ Procedure structure for sp_test_return-- ----------------------------DROP PROCEDURE IF EXISTS `sp_test_return`;DELIMITER ;;CREATE PROCEDURE `sp_test_return`(In num integer)label_pro:begin if num > 3 then leave label_pro;else select num as exeuted;end if;end;;DELIMITER ; 本例中，给整个存储过程的入口打了一个标记，当在遇到需要退出存储过程时，只要 leave + 此标记即可。
作者 crocodile bitsCN.com
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