用SELECT插入 [英] INSERT with SELECT

问题描述

我有一个使用选择插入的查询:

I have a query that inserts using a select:

INSERT INTO courses (name, location, gid) 
            SELECT name, location, gid 
              FROM courses 
             WHERE cid = $cid

是否可以仅为插入内容选择名称，位置"，并将gid设置为查询中的其他内容?

Is it possible to only select "name,location" for the insert, and set gid to something else in the query?

推荐答案

是的，但是请检查语法.

Yes, absolutely, but check your syntax.

INSERT INTO courses (name, location, gid)
SELECT name, location, 1
FROM   courses
WHERE  cid = 2

您可以在其中放置与gid相同类型的常量，而不只是1.而且，我只是弥补了cid值.

You can put a constant of the same type as gid in its place, not just 1, of course. And, I just made up the cid value.

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