MySQL：按ID選擇行，更改ID，然后將其插入另一個表

Question

我有兩個表，A和B。

我想根據其主鍵從B中選擇一行，將主鍵更改為其他值，然后將該行插入A。

像這樣：

INSERT INTO A SELECT id, title, date FROM B WHERE B.id="4" UPDATE B SET id="5";

有解決方案嗎？

Answer 1

INSERT INTO A(id, title, date)
SELECT 5 AS id, title, date FROM B WHERE B.id="4";
#      ^--- here is the trick

Answer 2

也許像

insert into a (select id as "new_id", title, date from b where b.id="4")