MySQL 随机密码生成代码
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2023-12-13 15:00:34
复制代码 代码如下:delimiter $$ create function `t_girl` . `func_rand_string` ( f_num tinyint u...
复制代码 代码如下:
delimiter $$
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 < f_num do
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);