技術標籤：SQLmysql

一、

這樣建立的新表order_archived內容和orders相同，但是沒主鍵

USE sql_store;

CREATE TABLE order_archived AS
SELECT * FROM orders
# 後面可以加上WHERE等子句

二、

USE sql_invoicing;
CREATE TABLE invoices_archive AS
SELECT
i.invoice_id,
i.number,
c.name AS client,
i.invoice_total,
i.payment_total,
i.invoice_date,
i.payment_date,
i.due_date
FROM invoices i
JOIN clients c USING (client_id)
WHERE i.payment_date IS NOT NULL