Question

SELECT rollID 
FROM [dbo].[dbo_Roll] a
  INNER JOIN [evt_Building Permits] b
    ON LEFT(a.rollnumber, LEN(a.rollnumber)-4) = b.rollnumber COLLATE DATABASE_DEFAULT

我想将结果更新到此表[evt_Building Permits].roll_id = [dbo].[dbo_Roll].rollID？

我怎样才能达到这个目标？

Answer 1

试试这个

UPDATE b
SET b.roll_id = a.rollID
FROM 
    [dbo].[dbo_Roll] a
  INNER JOIN 
    [evt_Building Permits] b
  ON LEFT(a.rollnumber, LEN(a.rollnumber)-4) = b.rollnumber COLLATE DATABASE_DEFAULT

Answer 2

像这样。

update b
set rollID = a.rollID
from [dbo].[dbo_Roll] a
inner join [evt_Building Permits] b
on LEFT(a.rollnumber, LEN(a.rollnumber)-4) = b.rollnumber COLLATE DATABASE_DEFAULT

Answer 3

试试这个语法：

update b
set b.roll_id = a.rollID
from [dbo].[dbo_Roll] a
inner join [evt_Building Permits] b
on LEFT(a.rollnumber, LEN(a.rollnumber)-4) = b.rollnumber COLLATE DATABASE_DEFAULT

使用select更新语句到另一个表

3 个答案: