有时候会用到查询倒数第二条记录

复制代码 代码如下:

last=HolderChangeHistory.find_by_sql

([" SELECT * FROM holder_change_histories

where treasure_id = ?

order by id desc

limit 1,1 ",

@hch.treasure_id])

复制代码 代码如下:

select *

from tablename a

where (

select count(*)

from tablename b

where a.id<b.id)=1

复制代码 代码如下:

select *

from tb1

order by tb1.id desc

limit 1,1;