DROP TABLE IF EXISTS `vote_record_memory`;
CREATE TABLE `vote_record_memory` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`user_id` varchar(20) NOT NULL DEFAULT '',
`vote_num` int(10) unsigned NOT NULL DEFAULT '0',
`group_id` int(10) unsigned NOT NULL DEFAULT '0',
`status` tinyint(2) unsigned NOT NULL DEFAULT '1',
`create_time` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
PRIMARY KEY (`id`),
KEY `index_user_id` (`user_id`) USING HASH
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
DROP TABLE IF EXISTS `vote_record`;
CREATE TABLE `vote_record` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`user_id` varchar(20) NOT NULL DEFAULT '' COMMENT '用户Id',
`vote_num` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '投票数',
`group_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '用户组id 0-未激活用户 1-普通用户 2-vip用户 3-管理员用户',
`status` tinyint(2) unsigned NOT NULL DEFAULT '1' COMMENT '状态 1-正常 2-已删除',
`create_time` datetime NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT '创建时间',
PRIMARY KEY (`id`),
KEY `index_user_id` (`user_id`) USING HASH
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='投票记录表';
-- 创建生成长度为n的随机字符串的函数
DELIMITER // -- 修改MySQL delimiter:'//'
DROP FUNCTION IF EXISTS `rand_string` //
SET NAMES utf8 //
CREATE FUNCTION `rand_string` (n INT) RETURNS VARCHAR(255) CHARSET 'utf8'
BEGIN
DECLARE char_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(char_str, FLOOR(1 + RAND()*62), 1));
SET i = i+1;
END WHILE;
RETURN return_str;
END //
-- 创建插入数据的存储过程
DROP PROCEDURE IF EXISTS `add_vote_record_memory` //
CREATE PROCEDURE `add_vote_record_memory`(IN n INT)
BEGIN
DECLARE i INT DEFAULT 1;
DECLARE vote_num INT DEFAULT 0;
DECLARE group_id INT DEFAULT 0;
DECLARE status TINYINT DEFAULT 1;
WHILE i < n DO
SET vote_num = FLOOR(1 + RAND() * 10000);
SET group_id = FLOOR(0 + RAND()*3);
SET status = FLOOR(1 + RAND()*2);
INSERT INTO `vote_record_memory` VALUES (NULL, rand_string(5), vote_num, group_id, status, NOW());
SET i = i + 1;
END WHILE;
END //
DELIMITER ; -- 改回默认的 MySQL delimiter:';'
-- 调用存储过程 生成100W条数据
CALL add_vote_record_memory(1000000);
SELECT count(*) FROM `vote_record_memory`;
-- count(*)
-- 105646
INSERT INTO vote_record SELECT * FROM `vote_record_memory`;
SELECT count(*) FROM `vote_record`;
-- count(*)
-- 105646