如何从另一个表更新记录

Table1

表格1

ID     Loc
-----------
001    null
002    null
003    PYD
004    null
....

Table2

表2

ID     Loc
-----------
001    TMB
002    null
003    PYD
004    SHD
....

I want to update table1 from table2. I'd need something like this:

我想从table2更新table1。我需要这样的东西：

update table1 set LoC = Select LoC from table2

And the expected output:

和预期的产量：

Table1

表格1

ID     Loc
-----------
001    TMB
002    null
003    PYD
004    SHD
....

How do I update table1 from table2?

如何从table2更新table1？

5 个解决方案

#1

try something like:

尝试类似的东西：

update t
 set t.loc = t2.loc
 from table1 t
 inner join table2 t2 on t.id =t2.id

#2

update table1 set LoC = (Select LoC from table2 where table2 .ID =  table1 .ID)

#3

Is that what you need?

这就是你需要的吗？

update table1
set Loc = t2.Loc
from table1 t1 join table2 t2
   on t1.ID = t2.ID

#4

update table1
set Loc = table2.Loc
from table2
where table1.ID = table2.ID

#5

You can use joins.

您可以使用联接。

update t1 set t1.Loc=t2.Loc
From Table1 t1 inner join Table2 t2
on t1.Id=t2.Id

#1