SQL fiddle demo

Question

SQL Server 2008

两张桌子：

表A有以下数据：

RowA
RowB
RowC
RowD

表B有以下数据：

Row4
Row3
Row2
Row1

我想获得以下输出：

RowA Row1
RowB Row2
RowC Row3
RowD Row4

两个表之间唯一的共同值是行号

我当然可以单独获取数据：

SELECT val
FROM A
ORDER BY val

SELECT val
FROM B
ORDER BY val

但我如何加入行号？

如果我没有订单，但只想按行出的顺序排序，该怎么办？

RowA Row4
RowB Row3
RowC Row2
RowD Row1

在

的连接中

SELECT val
FROM A

SELECT val
FROM B

Answer 1

试试这个：

在sql server 2008中使用ROW_NUMBER()函数

select A.val,B.val 
from(
    SELECT val,row_number() over (order by val) as row_num
    FROM A)A
join
    (SELECT val,row_number() over (order by val) as row_num
    FROM B)B
on  A.row_num=B.row_num
ORDER BY A.val,B.val

SQL fiddle demo

Answer 2

select A.sectionname, A.Basicprice,A.Brand,A.Description,A.Description,A.Grandtotal,A.GST,A.Gstvalue,A.Hsncode,A.Image,A.Installationcharge,A.Model,B.Age,B.Mark,B.Name,B.class

from(
   SELECT Class,row_number() over (order by class) as row_num,Age,Mark,Name
   FROM classtable)B
   LEFT join
   (SELECT sectionname,row_number() over (order by sectionname) as row_num,Basicprice,Brand,Description,Grandtotal,GST,Gstvalue,Hsncode,Image,Installationcharge,Model
   FROM testtable)A

on  A.row_num=B.row_num

如何在sql server中对行号进行内连接

2 个答案:

SQL fiddle demo