sql - Sql更新查询

Question

我有一个T1包含三列的表：Id, Name, Address

还有另一个T2包含 2 列的表Id, New_Address。Id的列与T2的相同T1。

我需要一个查询来更新with of 的Address列。T1New_AddressT2

我可以通过检查 ID 并执行更新语句来完成循环。如何必须通过查询来完成？

Answer 1

怎么样

UPDATE T1
SET Address = T2.New_Address
FROM T2
WHERE T1.id = T2.id

Answer 2

UPDATE T1
SET T1.Address = T2.New_Address
FROM T1
INNER JOIN T2 ON T2.ID = T1.ID

Answer 3

UPDATE T1
SET Address = (select New_Address from T2 where T1.ID=T2.ID );