来自ITPUB的一位老兄。写的很好。贴出来。
DELIMITER $$
DROP PROCEDURE IF EXISTS `test`.`sp_insert_batch`$$
CREATE DEFINER=`root`@`localhost` PROCEDURE `sp_insert_batch`(IN number int(11))
BEGIN
declare i int(11);
set i = 1;
-- such as 1-2000,2000-4000,....
WHILE i <= number DO
if mod(i,2000)=1 then
set @sqltext =concat('(''',concat('t',i),''',''',now(),''',',ceil(10*rand()),')');
elseif mod(i,2000)=0 then
set @sqltext=concat(@sqltext,',(''',concat('t',i),''',''',now(),''',',ceil(10*rand()),')');
set @sqltext=concat('insert into song (name,datetime,rank) values',@sqltext);
prepare stmt from @sqltext;
execute stmt;
DEALLOCATE PREPARE stmt;
set @sqltext='';
else
set @sqltext=concat(@sqltext,',(''',concat('t',i),''',''',now(),''',',ceil(10*rand()),')');
end if;
set i = i + 1;
END WHILE;
-- process when number is not be moded by 2000
-- such as 2001,4002,15200,...
if @sqltext<>'' then
set @sqltext=concat('insert into song (name,datetime,rank) values',@sqltext);
prepare stmt from @sqltext;
execute stmt;
DEALLOCATE PREPARE stmt;
set @sqltext='';
end if;
END$$
DELIMITER ;附表结构。
/*DDL Information For - test.song*/
-----------------------------------
Table Create Table
------ ----------------------------------------------------------------------------------------
song CREATE TABLE `song` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'Autoincreament element',
`name` text NOT NULL,
`datetime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`rank` int(11) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=8102001 DEFAULT CHARSET=gbk
本文转自 david_yeung 51CTO博客，原文链接：
http://blog.51cto.com/yueliangdao0608/81281
，如需转载请自行联系原作者
