1.生成数据
//建表 CREATE TABLE `person` ( `id` bigint(20) unsigned NOT NULL, `username` varchar(100) NOT NULL, `age` tinyint(3) unsigned NOT NULL, `sex` tinyint(1) unsigned NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8; //创建生成数据procedure,num代表生成数据量的大小 CREATE PROCEDURE `generate`(IN num INT) BEGIN DECLARE char_str varchar(100) DEFAULT 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; DECLARE username VARCHAR(25) DEFAULT ''; DECLARE id int UNSIGNED; DECLARE len int; set id=1; DELETE from person; WHILE id <= num DO set len = FLOOR(1 + RAND()*25); set username = ''; WHILE len > 0 DO SET username = CONCAT(username,substring(char_str,FLOOR(1 + RAND()*62),1)); SET len = len - 1; END WHILE; INSERT into person VALUES (id,username, FLOOR(RAND()*100), FLOOR(RAND()*2)); set id = id + 1; END WHILE; END //最后执行generate,生成1000万数据 CALL generate(10000000);