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 _disibledevent=>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);
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