Question

表格：

autn  itcode  date  qty  phstock    
----------------------------------------
1     10      1/1   1   
2     5       2/2   1   
3     6       1/1   5
4     10      2/1   5
5     9       1/1   5   
6     10      3/1   1    5
7     5       5/1   2
8     5       6/1   5   
9     10      5/5   1   
10    5       7/1   2   
11    10      7/2   5    2
12    10      7/8   2

如何输出如下：

autn  itcode  date  qty  phstock
--------------------------------
11    10      7/2   5    2
12    10      7/8   2

提示：我只想记录我最后一次输入成人版本的phstock＆＃39;！[在此处输入图片说明] [1]

Answer 1

这将返回设置了phstock的最新行之后的所有行：

select  *
from    YourTable
where   date >=
        (
        select  max(date)
        from    YourTable
        where   phstock is not null
        )

Answer 2

select * 
  from YourTable x 
 where x.date = (
   select max(y.date) from Yourtable y
   )

如果我找到了你，那么你只想要一个特定的'phstock'。

select * from YourTable c
 where x.date = (
   select max(y.date) from Yourtable y where y.phstock = <YourPhStockHere>
   )
 and x.phstock = <YourPhStockHere>

从特定记录中选择全部

2 个答案: