Php ty 10那么，你想得到所有介于DATE1和DATE2之间的订单，这些订单的产品超过了限额（product.stock），对吗？我尝试了一些类似的方法，但没有考虑重叠。我更新了问题的更多细节。它与我想要的非常接近，只是bookingStart和bookin

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ty 10那么，你想得到所有介于

DATE1

和

DATE2

之间的订单，这些订单的产品超过了限额（

product.stock

），对吗？我尝试了一些类似的方法，但没有考虑重叠。我更新了问题的更多细节。它与我想要的非常接近，只是bookingStart和bookingEnd是一个日期时间，所以我需要找到超售发生的具体时间间隔。

id int
bookingStart DATETIME
bookingEnd DATETIME

id int
qty int
product_id int
booking_id int

id int
stock int

SELECT  (SELECT SUM(lin2.qty) FROM booking_lines lin2,orders b2
                       WHERE
                         lin2.product_id=e.id    AND
                       b2.id=lin2.booking_id  AND                           (
                       (b2.bookingStart BETWEEN b1.bookingStart AND b1.bookingEnd) OR
                       (b2.bookingEnd BETWEEN b1.bookingStart AND b1.bookingEnd) OR
                       (b2.bookingStart < b1.bookingStart AND b2.bookingEnd >     b1.bookingEnd)                           
                       )    as booked SUM(lin1.qty) 
                 FROM orders b1
                 LEFT JOIN order_lines lin1 ON b1.id=lin1.booking_id
                 LEFT JOIN products e ON e.id=lin1.product_id

                (
                    (b1.bookingStart BETWEEN '$s' AND '$e') OR
                    (b1.bookingEnd BETWEEN '$s' AND '$e') OR
                    (b1.bookingStart < '$s' AND b1.bookingEnd > '$e') 
        )
         GROUP BY b1.id,lin1.product_id

select p.id, p.stock, t.bookedQty
from products as p
    inner join (
            select ol.product_id, sum(ol.qty) as bookedQty
            from order_lines as ol
                inner join orders as o on ol.booking_id = o.id
            where o.bookingStart between '2013-06-10' and '2013-06-11'
                    and t.bookedQty > p.stock
            group by ol.product_id) as t

SELECT
        date,
        p.product_id,
        sum(ol.qty) AS total_booked,
        p.stock AS available
FROM  (
        SELECT c.date
        FROM
          (SELECT curdate() + interval (a.a + (10 * b.a)) DAY AS date
           FROM
             (SELECT 0 AS a
              UNION ALL SELECT 1
              UNION ALL SELECT 2
              UNION ALL SELECT 3
              UNION ALL SELECT 4
              UNION ALL SELECT 5
              UNION ALL SELECT 6
              UNION ALL SELECT 7
              UNION ALL SELECT 8
              UNION ALL SELECT 9) AS a CROSS
           JOIN
             (SELECT 0 AS a
              UNION ALL SELECT 1
              UNION ALL SELECT 2
              UNION ALL SELECT 3
              UNION ALL SELECT 4
              UNION ALL SELECT 5
              UNION ALL SELECT 6
              UNION ALL SELECT 7
              UNION ALL SELECT 8
              UNION ALL SELECT 9) AS b
          ) AS c
        WHERE c.date >= curdate() AND c.date < DATE_ADD(curdate(), INTERVAL 100 DAY)
    ) AS gendates
    INNER JOIN orders AS o ON o.bookingStart <= gendates.date AND o.bookingEnd > gendates.date
    INNER JOIN order_lines AS ol ON o.order_id = ol.order_id
    INNER JOIN products AS p ON ol.product_id = p.product_id
GROUP BY gendates.date, p.product_id, p.stock
HAVING total_booked > p.stock

CREATE TABLE products (
    product_id INT AUTO_INCREMENT PRIMARY KEY,
    name       VARCHAR(255),
    stock      INT
) ENGINE=InnoDB;

CREATE TABLE orders (
    order_id     INT AUTO_INCREMENT PRIMARY KEY,
    bookingStart DATETIME,
    bookingEnd   DATETIME
) ENGINE=InnoDB;


CREATE TABLE order_lines (
    line_id       INT AUTO_INCREMENT PRIMARY KEY,
    order_id      INT,
    product_id    INT,
    qty           INT NOT NULL DEFAULT 0,
    CONSTRAINT FOREIGN KEY(order_id)   REFERENCES orders(order_id) ON DELETE RESTRICT,
    CONSTRAINT FOREIGN KEY(product_id) REFERENCES products(product_id) ON DELETE RESTRICT
) ENGINE=InnoDB;


INSERT INTO products(name, stock) VALUES('Product 1', 8);
INSERT INTO products(name, stock) VALUES('Product 2', 14);
INSERT INTO products(name, stock) VALUES('Product 3', 25);

INSERT INTO orders(bookingStart,bookingEnd) VALUES(NOW(), (NOW() + INTERVAL 2 HOUR));
INSERT INTO orders(bookingStart,bookingEnd) VALUES(NOW(), (NOW() + INTERVAL 3 HOUR));
INSERT INTO orders(bookingStart,bookingEnd) VALUES(NOW(), (NOW() + INTERVAL 4 HOUR));

INSERT INTO order_lines(order_id, product_id, qty) VALUES(1, 1, 2);
INSERT INTO order_lines(order_id, product_id, qty) VALUES(1, 1, 8);
INSERT INTO order_lines(order_id, product_id, qty) VALUES(2, 2, 5);
INSERT INTO order_lines(order_id, product_id, qty) VALUES(2, 2, 10);
INSERT INTO order_lines(order_id, product_id, qty) VALUES(3, 3, 2);
INSERT INTO order_lines(order_id, product_id, qty) VALUES(3, 3, 8);
INSERT INTO order_lines(order_id, product_id, qty) VALUES(3, 3, 10);

SELECT
  products.*,
  SUM(order_lines.qty) as sum_qty
FROM products
LEFT JOIN order_lines ON order_lines.product_id = products.product_id
LEFT JOIN orders ON orders.order_id = order_lines.order_id
WHERE orders.bookingStart >= '2013-06-12' 
AND orders.bookingEnd <= '2013-06-14'
GROUP BY order_lines.order_id, order_lines.product_id
HAVING sum_qty > products.stock