1 建立表格
CREATE TABLE `tables_a` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`name` char(50) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
2 建立方法
set global log_bin_trust_function_creators = 1;
DROP FUNCTION IF EXISTS rand_string;
DELIMITER //
CREATE FUNCTION rand_string(n INT)
RETURNS VARCHAR(255)
BEGIN
DECLARE chars_str varchar(100) DEFAULT 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
DECLARE return_str varchar(255) DEFAULT '';
DECLARE i INT DEFAULT 0;
WHILE i < n DO
SET return_str = concat(return_str,substring(chars_str , FLOOR(1 + RAND()*62 ),1));
SET i = i +1;
END WHILE;
RETURN return_str;
END //
delimiter ;
3 建立存储过程
delimiter //
create procedure test(x int(10),y int(10),z int(10))
begin
DECLARE i INT DEFAULT x;
while i
insert into tables_a (`name`) values(rand_string(z));
set i=i+1;
end while;
end //
delimiter ;
4 调用存储过程[此处的4作用不大，只是用来计算插入条数(9-4)]
CALL test(4,9,5)
5 显示结果
