以前的:
http://yueliangdao0608.blog.51cto.com/397025/201086
这次增加了大写字母。
- DELIMITER $$
- USE `t_girl`$$
- DROP FUNCTION IF EXISTS `func_rand_string`$$
- CREATE DEFINER=`root`@`localhost` FUNCTION `func_rand_string`(f_num TINYINT UNSIGNED,f_type TINYINT UNSIGNED) RETURNS VARCHAR(32) CHARSET utf8
- BEGIN
- -- Translate the number to letter.
- -- No 1 stands for string only.
- -- No 2 stands for number only.
- -- No 3 stands for combination of the above.
- DECLARE i INT UNSIGNED DEFAULT 0;
- DECLARE v_result VARCHAR(255) DEFAULT '';
- WHILE i < f_num DO
- IF f_type = 1 THEN
- SET v_result = CONCAT(v_result,CHAR(65+32*(CEIL(RAND()*2)-1)+CEIL(RAND()*25)));
- ELSEIF f_type=2 THEN
- SET v_result = CONCAT(v_result,CEIL(RAND()*9));
- ELSEIF f_type=3 THEN
- IF (CEIL(RAND()*2)-1) = 1 THEN
- SET v_result = CONCAT(v_result,SUBSTRING(REPLACE(UUID(),'-',''),i+1,1));
- ELSE
- SET v_result = CONCAT(v_result,UPPER(SUBSTRING(REPLACE(UUID(),'-',''),i+1,1)));
- END IF;
- END IF;
- SET i = i + 1;
- END WHILE;
- RETURN v_result;
- END$$
- DELIMITER ;
调用方法类似。
本文转自 david_yeung 51CTO博客,原文链接:http://blog.51cto.com/yueliangdao0608/882524,如需转载请自行联系原作者