Php mysql数据库中历史价格的价格和产品查询（3个表）

我对mysql还很陌生，现在我迷路了。这是我第一次在这里发帖。我的问题是在介绍价格/回扣/佣金的历史表时进行查询。在介绍此表之前，我有以下查询来完成获取统计数据的工作：

select 
    cc_sale.cc_agent,
    individual.surname as cc_agentname,
    SUM(cc_sale.number_of) as sales,
    commoditys.commodity_name,(commoditys.commission * SUM(cc_sale.number_of)) as commission_sum 
    FROM cc_sale 
    LEFT JOIN commoditys ON commoditys.id=cc_sale.commodity_id
    LEFT JOIN destination ON destination.dest_id=cc_sale.cc_agent
    LEFT JOIN individual ON individual.individual_id=destination.owner_id
    WHERE cc_sale.project_id=$ccprojectid group by cc_sale.cc_agent,commoditys.commodity_name order by commission_sum desc;

在引入商品历史表之后，我很难找到一种查询方法来获得相同的统计数据

mysql> describe cc_sale;
+--------------------+---------------------+------+-----+-------------------+----------------+
| Field              | Type                | Null | Key | Default           | Extra          |
+--------------------+---------------------+------+-----+-------------------+----------------+
| id                 | int(10) unsigned    | NO   | PRI | NULL              | auto_increment |
| project_id         | int(10) unsigned    | NO   |     | NULL              |                |
| cc_agent           | int(10) unsigned    | NO   |     | NULL              |                |
| cc_called          | int(10) unsigned    | NO   |     | NULL              |                |
| commodity_id       | int(10) unsigned    | NO   |     | NULL              |                |
| number_of          | int(10) unsigned    | NO   |     | NULL              |                |
| customer_number_of | int(10) unsigned    | YES  |     | NULL              |                |
| status             | tinyint(3) unsigned | YES  |     | 1                 |                |
| sale_date          | timestamp           | NO   |     | CURRENT_TIMESTAMP |                |
+--------------------+---------------------+------+-----+-------------------+----------------+

设置为9行0.00秒

mysql> describe commoditys;
+------------------+------------------+------+-----+---------------------+----------------+
| Field            | Type             | Null | Key | Default             | Extra          |
+------------------+------------------+------+-----+---------------------+----------------+
| id               | int(10) unsigned | NO   | PRI | NULL                | auto_increment |
| commodity_id     | varchar(64)      | NO   |     | NULL                |                |
| commodity_name   | varchar(64)      | NO   |     | NULL                |                |
| price            | decimal(10,2)    | YES  |     | NULL                |                |
| kickback         | decimal(10,2)    | YES  |     | NULL                |                |
| commission       | decimal(10,2)    | YES  |     | NULL                |                |
| added_date       | timestamp        | NO   |     | CURRENT_TIMESTAMP   |                |
| end_of_life_date | timestamp        | NO   |     | 0000-00-00 00:00:00 |                |
| cc_customer_id   | int(10) unsigned | YES  | MUL | NULL                |                |
| project_id       | int(10) unsigned | NO   |     | 0                   |                |
+------------------+------------------+------+-----+---------------------+----------------+

mysql> select * from commoditys;
+----+--------------+----------------+---------+----------+------------+---------------------+---------------------+----------------+------------+
| id | commodity_id | commodity_name | price   | kickback | commission | added_date          | end_of_life_date    | cc_customer_id | project_id |
+----+--------------+----------------+---------+----------+------------+---------------------+---------------------+----------------+------------+
|  1 | test1        | testeteste     |  100.00 |    40.00 |      15.00 | 2011-05-25 11:55:45 | 0000-00-00 00:00:00 |              1 |          1 |
|  2 | test2        | telefonmøte    |    0.00 |  1500.00 |     300.00 | 2011-05-25 13:17:39 | 0000-00-00 00:00:00 |              1 |          1 |
|  3 | test3        | test3product   |  300.00 |   150.00 |      50.00 | 2011-06-04 15:53:32 | 0000-00-00 00:00:00 |              1 |          1 |
|  4 | test4        | test4product   |  600.00 |   300.00 |     100.00 | 2011-06-04 15:55:25 | 0000-00-00 00:00:00 |              1 |          1 |
|  5 | test5        | test5product   | 1000.00 |   300.00 |     100.00 | 2011-06-04 23:24:40 | 2012-06-29 00:00:00 |              1 |          0 |
+----+--------------+----------------+---------+----------+------------+---------------------+---------------------+----------------+------------+
5 rows in set (0.00 sec)




mysql> select * from commodity_history;
+----+------+--------------+---------+----------+------------+---------------------+
| id | c_id | commodity_id | price   | kickback | commission | changed_date        |
+----+------+--------------+---------+----------+------------+---------------------+
|  1 |    1 | test1        |  100.00 |    40.00 |      15.00 | 2011-05-25 11:55:45 |
|  2 |    2 | test2        |    0.00 |  1500.00 |     300.00 | 2011-05-25 13:17:39 |
|  3 |    3 | test3        |  300.00 |   150.00 |      50.00 | 2011-06-04 15:53:32 |
|  4 |    4 | test4        |  600.00 |   300.00 |     100.00 | 2011-06-04 15:55:25 |
|  5 |    5 | test5        | 1000.00 |   300.00 |     100.00 | 2011-06-04 23:24:40 |
|  6 |    2 | test2        |    0.00 |  1000.00 |     200.00 | 2011-06-01 08:00:00 |
|  7 |    1 | test1        |  200.00 |   150.00 |     100.00 | 2011-06-01 08:00:00 |
+----+------+--------------+---------+----------+------------+---------------------+
7 rows in set (0.00 sec)

一组10行0.01秒

mysql> describe commodity_history;
+--------------+------------------+------+-----+-------------------+----------------+
| Field        | Type             | Null | Key | Default           | Extra          |
+--------------+------------------+------+-----+-------------------+----------------+
| id           | int(10) unsigned | NO   | PRI | NULL              | auto_increment |
| c_id         | int(10) unsigned | NO   |     | NULL              |                |
| commodity_id | varchar(64)      | NO   |     | NULL              |                |
| price        | decimal(10,2)    | YES  |     | NULL              |                |
| kickback     | decimal(10,2)    | YES  |     | NULL              |                |
| commission   | decimal(10,2)    | YES  |     | NULL              |                |
| changed_date | timestamp        | NO   |     | CURRENT_TIMESTAMP |                |
+--------------+------------------+------+-----+-------------------+----------------+
7 rows in set (0.00 sec)

从cc_销售：

+----+------------+----------+-----------+--------------+-----------+--------------------+--------+---------------------+
| id | project_id | cc_agent | cc_called | commodity_id | number_of | customer_number_of | status | sale_date           |
+----+------------+----------+-----------+--------------+-----------+--------------------+--------+---------------------+
|  1 |          1 |        3 |       420 |            2 |         1 |               NULL |      2 | 2011-05-30 16:00:00 |
|  2 |          1 |        3 |       421 |            2 |         2 |               NULL |      2 | 2011-05-30 16:00:00 |
|  3 |          1 |        3 |       422 |            1 |         2 |               NULL |      2 | 2011-05-30 16:00:00 |
| 77 |          1 |        3 |       804 |            1 |         2 |               NULL |      2 | 2011-06-06 15:00:00 |
| 78 |          1 |        3 |       809 |            1 |         4 |               NULL |      2 | 2011-06-06 15:00:00 |
| 79 |          1 |        3 |       823 |            1 |         2 |               NULL |      2 | 2011-06-06 15:00:00 |
| 80 |          1 |        3 |       835 |            1 |         1 |               NULL |      2 | 2011-06-06 15:00:00 |
| 81 |          1 |        3 |       835 |            2 |         1 |               NULL |      2 | 2011-06-06 15:00:00 |
| 82 |          1 |        3 |       841 |            2 |         1 |               NULL |      2 | 2011-06-06 15:00:00 |
| 83 |          1 |        3 |       852 |            3 |         1 |               NULL |      2 | 2011-06-06 15:00:00 |
| 84 |          1 |        3 |       854 |            4 |         1 |               NULL |      2 | 2011-06-06 15:00:00 |
| 85 |          1 |        3 |       862 |            4 |         1 |               NULL |      2 | 2011-06-06 15:00:00 |
+----+------------+----------+-----------+--------------+-----------+--------------------+--------+---------------------+

设置为0.00秒的85行

mysql> describe commoditys;
+------------------+------------------+------+-----+---------------------+----------------+
| Field            | Type             | Null | Key | Default             | Extra          |
+------------------+------------------+------+-----+---------------------+----------------+
| id               | int(10) unsigned | NO   | PRI | NULL                | auto_increment |
| commodity_id     | varchar(64)      | NO   |     | NULL                |                |
| commodity_name   | varchar(64)      | NO   |     | NULL                |                |
| price            | decimal(10,2)    | YES  |     | NULL                |                |
| kickback         | decimal(10,2)    | YES  |     | NULL                |                |
| commission       | decimal(10,2)    | YES  |     | NULL                |                |
| added_date       | timestamp        | NO   |     | CURRENT_TIMESTAMP   |                |
| end_of_life_date | timestamp        | NO   |     | 0000-00-00 00:00:00 |                |
| cc_customer_id   | int(10) unsigned | YES  | MUL | NULL                |                |
| project_id       | int(10) unsigned | NO   |     | 0                   |                |
+------------------+------------------+------+-----+---------------------+----------------+

mysql> select * from commoditys;
+----+--------------+----------------+---------+----------+------------+---------------------+---------------------+----------------+------------+
| id | commodity_id | commodity_name | price   | kickback | commission | added_date          | end_of_life_date    | cc_customer_id | project_id |
+----+--------------+----------------+---------+----------+------------+---------------------+---------------------+----------------+------------+
|  1 | test1        | testeteste     |  100.00 |    40.00 |      15.00 | 2011-05-25 11:55:45 | 0000-00-00 00:00:00 |              1 |          1 |
|  2 | test2        | telefonmøte    |    0.00 |  1500.00 |     300.00 | 2011-05-25 13:17:39 | 0000-00-00 00:00:00 |              1 |          1 |
|  3 | test3        | test3product   |  300.00 |   150.00 |      50.00 | 2011-06-04 15:53:32 | 0000-00-00 00:00:00 |              1 |          1 |
|  4 | test4        | test4product   |  600.00 |   300.00 |     100.00 | 2011-06-04 15:55:25 | 0000-00-00 00:00:00 |              1 |          1 |
|  5 | test5        | test5product   | 1000.00 |   300.00 |     100.00 | 2011-06-04 23:24:40 | 2012-06-29 00:00:00 |              1 |          0 |
+----+--------------+----------------+---------+----------+------------+---------------------+---------------------+----------------+------------+
5 rows in set (0.00 sec)




mysql> select * from commodity_history;
+----+------+--------------+---------+----------+------------+---------------------+
| id | c_id | commodity_id | price   | kickback | commission | changed_date        |
+----+------+--------------+---------+----------+------------+---------------------+
|  1 |    1 | test1        |  100.00 |    40.00 |      15.00 | 2011-05-25 11:55:45 |
|  2 |    2 | test2        |    0.00 |  1500.00 |     300.00 | 2011-05-25 13:17:39 |
|  3 |    3 | test3        |  300.00 |   150.00 |      50.00 | 2011-06-04 15:53:32 |
|  4 |    4 | test4        |  600.00 |   300.00 |     100.00 | 2011-06-04 15:55:25 |
|  5 |    5 | test5        | 1000.00 |   300.00 |     100.00 | 2011-06-04 23:24:40 |
|  6 |    2 | test2        |    0.00 |  1000.00 |     200.00 | 2011-06-01 08:00:00 |
|  7 |    1 | test1        |  200.00 |   150.00 |     100.00 | 2011-06-01 08:00:00 |
+----+------+--------------+---------+----------+------------+---------------------+
7 rows in set (0.00 sec)

每次商品存储在commoditys中时，也会向商品历史添加一行。 这样，我可能会在这个表中有几行商品id相同，但更改日期不同。 我希望能够查询数据库并获得如下内容：

+----------+------+----------------+----------------+
| cc_agent |sales | commodity_name | commission_sum |
+----------+------+----------------+----------------+
|        3 |   51 | telefonmøte    |       15300.00 | ! These 2 are same commodity with
|        3 |    5 | telefonmøte    |        1000.00 | ! different price
|      446 |    7 | telefonmøte    |        2100.00 |
|      448 |    2 | telefonmøte    |         600.00 |
|        3 |   40 | testeteste     |         600.00 |
|      446 |   23 | testeteste     |         345.00 |
|        3 |    2 | test4product   |         200.00 |
|      448 |    6 | testeteste     |          90.00 |
|        3 |    1 | test3product   |          50.00 |
+----------+------+----------------+----------------+
8 rows in set (0.00 sec)

希望任何人都能找到这个问题的答案。 关于

---

咆哮

如果您在商品历史表中再添加一个时间戳，一切都会简单得多。 您需要的是起始日期和结束日期，而不是更改日期。 在创建新记录和同时修改以前的商品历史记录以将其设置为日期时间戳时，处理这一点很简单。 searchtime查询变得非常简单

---

schgy2

你好，谢谢，我当然可以再加一个时间戳。但是我不知道如何设置查询来获取所提到的统计数据。有什么提示吗？我做了些改变，开始用新的眼光看着它。看起来它是用历史记录表中的这个结束日期解决的。谢谢你的提示。