使用另一个表上的值更新新添加的列

Question

我想在不丢失数据的情况下将一列从一个表移动到另一个表。我可以将数据复制到新表中的列而不创建原始表的任何副本/临时表吗？

Answer 1

If you haven't removed the PersonID column from benefit table, use the below script to update the newly added column in SchemeMember table

   UPDATE c
    SET c.personID =b.personID 
   FROM benefit b
      JOIN SchemeMember c on b.SchemeMemberID  =c.SchemeMemberID 

Answer 2

I did that using the following query.

UPDATE SchemeMember
SET personID = b.personUID
FROM SchemeMember s,benefit b
WHERE s.Id = b.SchemeMemberId