我需要SQL表中的最后一条记录[重复]

Question

这个问题在这里已有答案：

我有桌子跟着

ID Cust_ID Amount
1   1       10
2   1       20
3   2       30
4   2       40
5   3       50

我需要最新的Cust_Id结果记录，如下所示

ID  Cust_Id Amount
2    1       20
4    2       40
5    3       50

我像这样尝试了查询

Select Top 1 *Id,Cust_Id,Amount from tablename
Group by Cust_Id
Order by Id desc

Answer 1

你可以尝试使用row_number()

select * from
(
select *,row_number() over(partition by cust_id order id desc) rn from tablename
)A where rn=1

Answer 2

使用row_number()

select * from     
(
select *,
row_number() over(partition by cust_id order by Amount desc) rn   
from tabl
) t where rn=1

或使用相关子查询

 select t1.* from table t1
  where t1.Amount= (select max(Amount) from table t2 
                     where t1.cust_id=t2.cust_id)

Answer 3

你也可以尝试以下

select id,cust_id,amount
from YourTable t1
where id =(select max(t2.id) from YourTable  t2 where t2.Cust_ID=t1.Cust_ID)
order by id