MySQL中详细update (on duplicate key update id=values(id),value=values(value)......) (转)

MySQL中详细update (on duplicate key update id=values(id),value=values(value)......)

use test;

drop table if exists test.test;

CREATE TABLE `test` (

`id` tinyint(4) NOT NULL,

`value` varchar(10) NOT NULL,

PRIMARY KEY (`id`)

) ENGINE=MyISAM DEFAULT CHARSET=utf8;

insert into test.test(id,value) values(1,"first"),(2,"second"),(3,"third");

select * from test.test;

/**

'1', 'first'

'2', 'second'

'3', 'third'

*/

-- 方案1

insert into test(id,value) values(1,"11first"),(2,"22second"),(3,"33third") on duplicate key update id=values(id),value=values(value);

-- 方案2

select * from test.test;

replace into test(id,value) values(1,"11first"),(2,"22second"),(3,"33third");

select * from test.test;

/**

-- 看结果已经改变了

'1', '11first'

'2', '22second'

'3', '33third'

*/