drop table if exists user
CREATE TABLE `user` (
`id` int(11) unsigned NOT NULL auto_increment,
`txt` text NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
insert into user (txt) values ('张三'),('小张'),('张'),('李'),('李四'),('小李')
select * from user where txt like '张%'
select * from user where txt like '李%'
第一个用replace函数。update tablename set name = replace(name, '张', '李') where name like '张%'
第二个用Limit关键词。
select *
from tablename
order by col desc
limit 1, 1
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