mysql查询上一条数据,下一条数据

如果ID是主键或者有索引,可以直接查找:

方法一(此方法已经试用过,很有效的呢):

查询上一条记录的SQL语句(如果有其他的查询条件记得加上other_conditions以免出现不必要的错误):

select * from table_name where id = (select id from table_name where id < {$id} [and other_conditions] order by id desc limit 1) [and other_conditions];


查询下一条记录的SQL语句(如果有其他的查询条件记得加上other_conditions以免出现不必要的错误):

select * from table_name where id = (select id from table_name where id > {$id} [and other_conditions] order by id asc limit 1) [and other_conditions];


方法二(第一种方法已经实现了要得到的东东,有机会再验证这第二种方法吧):

查询上一条记录的SQL语句((如果有其他的查询条件记得加上other_conditions以免出现不必要的错误))

select * from table_a where id = (select max(id) from table_a where id < {$id} [and other_conditions]) [and other_conditions];


查询下一条记录的SQL语句(如果有其他的查询条件记得加上other_conditions以免出现不必要的错误):

select * from table_a where id = (select min(id) from table_a where id > {$id} [and other_conditions]) [and other_conditions];


摘自: http://www.icultivator.com/p/1434.html

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