如何合并多张发票，这些发票在某一点上是延期订购的，然后在mysql中完成_Mysql

如何合并多张发票，这些发票在某一点上是延期订购的，然后在mysql中完成

mysql

如何合并多张发票，这些发票在某一点上是延期订购的，然后在mysql中完成,mysql,Mysql,例如，我有一张发票，其中1张有库存，3张没有库存。后来，为那些缺货发票创建了两张发票。我希望能够将所有这些发票合并为一张，显示3张已发货的发票和1张仍在缺货的发票。 mysql表如下：订单号价格模型量以前的身份证 1788 1,200 SBS -1 空//倒序 1788 1,200 SSC -1 空//倒序 1788 1,200 囊 1. 无效的 1788 1,200 SBB -1 空//倒序在mysql 8中，您可以 rownumber rn 1始终具有较高的数字，如果只有-1，则

例如，我有一张发票，其中1张有库存，3张没有库存。后来，为那些缺货发票创建了两张发票。我希望能够将所有这些发票合并为一张，显示3张已发货的发票和1张仍在缺货的发票。 mysql表如下：

订单号价格模型量以前的身份证 1788 1,200 SBS -1 空//倒序 1788 1,200 SSC -1 空//倒序 1788 1,200 囊 1. 无效的 1788 1,200 SBB -1 空//倒序在mysql 8中，您可以

rownumber rn 1始终具有较高的数字，如果只有-1，则没有顺序，如果该数字为正数，则将选择该行

DBFIDLE

总共有3张发票。很可能是4张发票，但所有延期订单发票都需要合并到1张主发票中。您的示例确实有所帮助，但只有在所有型号代码都不同的情况下，它才会起作用。但是，如果某些模型完全相同，则不再适用。例如，如果3个型号代码为SBB，则不会显示所有4行@NBKI如果你有新的要求，接受并投票决定答案，提出新的问题。我添加了一个新的查询。该示例有效，但与@nbk不一致。在订单中插入产品订单id、价格、型号、数量、以前的id值“1788”、“1200”、“CBL”、“1”、Null、“1788”、“1200”、“CBL”、“1”、Null、“1788”、“1200”、“CBL”、“1”、Null、“1788”、“1200”、“CBL”、“1200”、“CBL”、“1200”、“CBL”、“1”、Null、“1788”、“1200”、“CBL”、“1”、Null、“1788”、“1200”、“1200”、“CBL”、“1”、Null、“1807”、“1200”、“CBL”、“1”、“1788”、“1806”等，‘1200’、‘CBL’、‘1’、‘1788’、‘1899’、‘1200’、‘CBL’、‘1’、‘1788’、‘1809’、‘1200’、‘SPL’、‘1’、‘1788；请注意，我有6个缺货订单，但只有4个被填写，这应该显示7行，但您的示例仍然显示4@nbkas，我已经说了更多的模式和更多的代码

CREATE TABLE orders (
  `order_id` INTEGER,
  `price` VARCHAR(5),
  `model` VARCHAR(3),
  `quantity` INTEGER,
  `previous_id` VARCHAR(18)
);

INSERT INTO orders
  (`order_id`, `price`, `model`, `quantity`, `previous_id`)
VALUES
  ('1788', '1,200', 'SBS', '-1', 'Null //backordered'),
  ('1788', '1,200', 'SSC', '-1', 'Null //backordered'),
  ('1788', '1,200', 'SAC', '1', 'Null'),
  ('1788', '1,200', 'SBB', '-1', 'Null //backordered'),
  ('1811', '1,200', 'SBB', '1', '1788'),
  ('1865', '1,200', 'SSC', '1', '1788');

SELECT
`order_id`, `price`, `model`, `quantity`, `previous_id`
FROM
(SELECT 
`order_id`, `price`, `model`, `quantity`, `previous_id`
, ROW_NUMBER() OVER ( PARTITION BY `model` ORDER BY `quantity` DESC) rn
FROM orders
WHERE `order_id` = '1788' OR `previous_id` = '1788') t1
WHERE rn = 1

order_id | price | model | quantity | previous_id -------: | :---- | :---- | -------: | :----------------- 1788 | 1,200 | SAC | 1 | Null 1811 | 1,200 | SBB | 1 | 1788 1788 | 1,200 | SBS | -1 | Null //backordered 1865 | 1,200 | SSC | 1 | 1788

CREATE TABLE orders (
  `order_id` INTEGER,
  `price` VARCHAR(5),
  `model` VARCHAR(3),
  `quantity` INTEGER,
  `previous_id` VARCHAR(18)
);

INSERT INTO orders
  (`order_id`, `price`, `model`, `quantity`, `previous_id`)
VALUES
  ('1788', '1,200', 'SBS', '-1', 'Null //backordered'),
  ('1788', '1,200', 'SSC', '-1', 'Null //backordered'),
  ('1788', '1,200', 'SAC', '1', 'Null'),
  ('1788', '1,200', 'SBB', '-1', 'Null //backordered'),
  ('1811', '1,200', 'SBB', '1', '1788'),
  ('1812', '1,200', 'SBB', '1', '1788'),
  ('1865', '1,200', 'SSC', '1', '17

SELECT
`order_id`, `price`, `model`, `quantity`, `previous_id`
FROM
(SELECT 
`order_id`, `price`, `model`, `quantity`, `previous_id`
, ROW_NUMBER() OVER ( PARTITION BY `model` ORDER BY `quantity` DESC) rn
,(SELECT COUNT(*) FROM orders WHERE `model` = o1.`model` AND `quantity` <> -1) mx
FROM orders o1
WHERE `order_id` = '1788' OR `previous_id` = '1788') t1
WHERE rn <= IF(mx = 0 , 1,mx)

order_id | price | model | quantity | previous_id -------: | :---- | :---- | -------: | :----------------- 1788 | 1,200 | SAC | 1 | Null 1811 | 1,200 | SBB | 1 | 1788 1812 | 1,200 | SBB | 1 | 1788 1788 | 1,200 | SBS | -1 | Null //backordered 1865 | 1,200 | SSC | 1 | 1788

CREATE TABLE order_product (
  `order_id` INTEGER,
  `price` VARCHAR(5),
  `model` VARCHAR(3),
  `qty` INTEGER,
  `previous_id` VARCHAR(18)
);

INSERT INTO order_product   (order_id, price, model, qty, previous_id) 
VALUES   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1807', '1,200', 'CBL', '1', 1788)
,   ('1806', '1,200', 'CBL', '1', 1788)
,   ('1899', '1,200', 'CBL', '1', 1788)
,   ('1809', '1,200', 'SPL', '1', 1788);

SELECT
`order_id`, `price`, `model`, `qty`, `previous_id`
FROM
(SELECT 
`order_id`, `price`, `model`, `qty`, `previous_id`
, ROW_NUMBER() OVER ( PARTITION BY `model` ORDER BY `qty` DESC) rn
,(SELECT COUNT(*) FROM order_product WHERE `model` = o1.`model` AND `qty` <> -1) mx
,(SELECT COUNT(*) FROM order_product WHERE `model` = o1.`model` AND `qty` = -1) nx
FROM order_product o1
WHERE `order_id` = '1788' OR `previous_id` = '1788') t1
WHERE rn <= IF(mx = 0 , nx,mx+ IF(nx=0, 0,nx -mx))

order_id | price | model | qty | previous_id -------: | :---- | :---- | --: | :---------- 1807 | 1,200 | CBL | 1 | 1788 1806 | 1,200 | CBL | 1 | 1788 1899 | 1,200 | CBL | 1 | 1788 1788 | 1,200 | CBL | -1 | null 1788 | 1,200 | CBL | -1 | null 1788 | 1,200 | CBL | -1 | null 1809 | 1,200 | SPL | 1 | 1788

CREATE TABLE order_product (
  `order_id` INTEGER,
  `price` VARCHAR(5),
  `model` VARCHAR(3),
  `qty` INTEGER,
  `previous_id` VARCHAR(18)
);

✓

INSERT INTO order_product   (order_id, price, model, qty, previous_id) 
VALUES   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1788', '1,200', 'CBL', '-1', Null)
,   ('1807', '1,200', 'CBL', '1', 1788)
,   ('1806', '1,200', 'CBL', '1', 1788)
,   ('1899', '1,200', 'CBL', '1', 1788)
,   ('1809', '1,200', 'SPL', '1', 1788);

SELECT
`order_id`, `price`, `model`, `qty`, `previous_id`
FROM
(SELECT 
`order_id`, `price`, `model`, `qty`, `previous_id`
, ROW_NUMBER() OVER ( PARTITION BY `model` ORDER BY `qty` DESC) rn
,(SELECT COUNT(*) FROM order_product WHERE  `qty` <> -1) mx
,(SELECT COUNT(*) FROM order_product WHERE `model` = o1.`model` AND `qty` <> -1) mx1
,(SELECT COUNT(*) FROM order_product WHERE `model` = o1.`model` AND `qty` = -1) nx
FROM order_product o1
WHERE `order_id` = '1788' OR `previous_id` = '1788') t1
WHERE rn <= IF(mx = 0 , nx,mx1+ IF(nx=0, 0,nx -mx))