如果ID是主键或者有索引,可以直接查找:
方法一:
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 id from table_a where id < {$id} [and other_conditions] order by id desc limit 1) [and other_conditions];
查询下一条记录的SQL语句(如果有其他的查询条件记得加上other_conditions以免出现不必要的错误):
select * from table_a where id = (select id from table_a where id > {$id} [and other_conditions] order by id asc limit 1) [and other_conditions];
方法二:
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];
本文出自 “Spring罂粟” 博客,请务必保留此出处http://itxwh.blog.51cto.com/5362423/1425061