需要mysql查询先进先出

Question

请帮助我如何创建 mysql 查询以用于 fifo 方法中的报告，

表 persediaan_source

ID	id_barang	朱姆拉	哈尔加	唐加尔	id_jenis_transaksi
89	26	12	1050000	2022-07-15 05:55:23	1
90	26	8	0	2022-07-15 05:55:52	2
91	26	16	1100000	2022-07-15 05:56:22	1
95	26	10	0	2022-07-15 05:59:09	2

id_jenis_transaksi = 1 is Buy
id_jenis_transaksi = 2 is Use

我需要像下面这样的报告

ID	日期	评论	购买数量	购买价格	购买总数	使用数量	使用数量详细信息	使用价格	使用总数	巴尔数量	bal_qty_detail	价格	bal_total
1	2022-07-15 05:55:23	买	12	1050000	12600000	0	0	0	0	12	12	1050000	12600000
2	2022-07-15 05:55:52	使用	0	0	0	8	8	1050000	8400000	4	4	1050000	4200000
3	2022-07-15 05:56:22	买	16	1100000	17600000	0	0	0	0	20	4	1050000	4200000
4	2022-07-15 05:56:22	买	0	0	0	0	0	0	0	0	16	1100000	17600000
5	2022-07-15 05:59:09	使用	0	0	0	10	4	1050000	4200000	10	0	1050000	0
6	2022-07-15 05:59:09	使用	0	0	0	0	6	1100000	6600000	0	10	1100000	11000000

第 3 行中必须在bal_qty_detail中进行细分，因为价格不同并且与之前的价格相比还有剩余数量，同样在第 5 行中也必须在use_qty_detail中进行细分

CREATE TABLE `persediaan_source` (
  `id` int(11) NOT NULL,
  `id_barang` int(11) NOT NULL,
  `jumlah` double NOT NULL,
  `harga` double NOT NULL,
  `tanggal` datetime NOT NULL,
  `id_jenis_transaksi` tinyint(4) NOT NULL COMMENT 'id = 1 -> buy, id = 2 -> use'
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


INSERT INTO `persediaan_source` (`id`, `id_barang`, `jumlah`, `harga`, `tanggal`, `id_jenis_transaksi`) VALUES
(89, 26, 12, 1050000, '2022-07-15 05:55:23', 1),
(90, 26, 8, 0, '2022-07-15 05:55:52', 2),
(91, 26, 16, 1100000, '2022-07-15 05:56:22', 1),
(95, 26, 10, 0, '2022-07-15 05:59:09', 2);

Answer 1

您好，使用以下过程您可以实现提及报告格式。但要处理 fifo 的粒度，您应该避免在 mysql 中创建这些逻辑。

SELECT @bal_qty:=0,@old_qty:=0,@old_qty_price:=0,@new_qty:=0,@new_qty_price:=0;
CREATE TEMPORARY TABLE test1
SELECT id, tanggal as date, 
@remarks:=if(id_jenis_transaksi=1,'Buy','Use') as remarks, 
@buy_qty:=if(id_jenis_transaksi=1,jumlah,0) as buy_qty, 
@buy_price:=if(id_jenis_transaksi=1,harga,0) as buy_price,  
@buy_total:=(@buy_qty * @buy_price) as buy_total, 
@use_qty:=if(id_jenis_transaksi=2,jumlah,0) as use_qty, 
@use_qty_detail:=if(@remarks='Use',if(@old_qty>0,@old_qty, @use_qty),0) as use_qty_detail, 
@use_price:=@old_qty_price as use_price, 
@use_total:=(@use_qty * @use_price) as use_total, 
@bal_qty:=if(@remarks='Buy',@bal_qty + @buy_qty, if(@bal_qty>@use_qty,@bal_qty - @use_qty, @bal_qty)) as bal_qty, 
@old_qty:=if(@old_qty > 0, @old_qty, if(@remarks='Use',@bal_qty, @old_qty)) as old_qty,
@old_qty_price:=if(@old_qty_price > 0, @old_qty_price, @buy_price) as old_qty_price,  
@new_qty:=if(@old_qty>0,@buy_qty, if(@new_qty>0, @new_qty,0)) as new_qty,
@new_qty_price:=if(@old_qty_price > 0 and @buy_price > 0, @buy_price, if(@new_qty_price>0,@new_qty_price,0)) as new_qty_price,
@bal_qty_detail:=if(@old_qty > 0, @old_qty, @buy_qty) as bal_qty_detail, 
@bal_price:=@old_qty_price as bal_price,
@bal_total:=(@bal_qty_detail* @old_qty_price) as bal_total,
@split_flag:=if(@bal_qty != @buy_qty and @bal_qty != @old_qty,1,0) as split_flag 
FROM persediaan_source;

CREATE TEMPORARY TABLE test2 select * from test1 where split_flag=1

SELECT @cnt:=0;

SELECT (@cnt:=@cnt + 1) as id, date, remarks, buy_qty, buy_price, buy_total, use_qty, use_qty_detail, use_price, use_total, bal_qty, bal_qty_detail, bal_price, bal_total 
FROM (
     (SELECT * FROM test1)
UNION ALL
(SELECT id, date, remarks, 0 as buy_qty, 0 as buy_price, 0 as buy_total, 0 as use_qty, 
@used_qty:=(use_qty - use_qty_detail) as use_qty_detail, 
if(remarks='Use',@new_qty_price,0) as use_price, 
(@used_qty * new_qty_price)  as use_total, 0 as bal_qty, 0 as old_qty, 
0 as old_qty_price, 0 as new_qty,0 as new_qty_price, 
@bal_qty_detail:=if(remarks='Buy', buy_qty,  bal_qty) as bal_qty_detail, 
new_qty_price as bal_price, 
(@bal_qty_detail * new_qty_price) as bal_total, split_flag 
 FROM test2)
) as t order by 2