复制代码 代码如下:
DELIMITER $$
CREATE
FUNCTION `t_girl` . `func_rand_string` ( f_num tinyint unsigned , f_type tinyint unsigned )
RETURNS varchar ( 32)
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 if f_type = 1 then
set v_result = concat ( v_result, char ( 97+ ceil( rand ( ) * 25) ) ) ;
elseif f_type= 2 then
set v_result = concat ( v_result, char ( 48+ ceil( rand ( ) * 9) ) ) ;
elseif f_type= 3 then
set v_result = concat ( v_result, substring ( replace ( uuid ( ) , '-' , '' ) , i+ 1, 1) ) ;
end if;
set i = i + 1;
end while;
return v_result;
END $ $
DELIMITER ;
调用方法示例：
复制代码 代码如下:
select func_rand_string(12,3);
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/4022/viewspace-2803695/ ，如需转载，请注明出处，否则将追究法律责任。
