带有子查询和值的 SQL INSERT INTO [英] SQL INSERT INTO with subquery and value

问题描述

有没有一种方法可以使用硬值和子查询的组合通过一个命令插入到表中?

Is there a way I can use a combination of hard values and a subquery to insert into a table with one command?

例如:

INSERT INTO suppliers (supplier_id, supplier_name, supplier_type)
SELECT account_no, name
FROM customers
WHERE city = 'San Diego';

我需要供应商类型为 3.那么我可以为第二行做以下操作吗?

I need supplier_type to be 3. So can I do the following for the second line?

SELECT account_no, name, supplier_type = 3

supplier_type 不在客户表中

推荐答案

只需将其添加到您的 SELECT 字段中即可.

Just add it with your SELECT fields.

INSERT INTO suppliers (supplier_id, supplier_name, supplier_type)
SELECT account_no, name, 3 AS supplier_type
FROM customers
WHERE city = 'San Diego';

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