课程注册和定价的数据库设计

时间:2019-07-09 00:34:28

标签: sql database database-design

您如何设计表格以处理即将发生的活动的注册表和价格?

如下表所示:

+-----------------------------+-------------------+----------------+--------------+
|      Occupation/Level       |   Optional Item   | Base Price | Early Bird Price |
+-----------------------------+-------------------+------------+------------------+
| Residents                   |                   | $1000      | $800             |
+--------------------------------------------------------------+------------------+
| Practitioners               | Exam Prep (+$500) | $1500      | $1300            |
+--------------------------------------------------------------+------------------+
| OBYGN Consultant - Friday   |                   | $800       | $900             |
| OBYGN Consultant - Saturday |                   | $800       | $900             |
| OBYGN Consultant - Sunday   |                   | $600       | $700             |
| OBYGN Consultant - All Days |                   | $1900      | $2100            |
+-----------------------------+-------------------+------------+------------------+
  • 根据与会者的职业收取不同的价格。
  • 从业者可以参加可选的考试准备课程,但需要支付额外费用
  • OBGYN顾问可以选择单日/多日注册;每个都收取不同的金额

为进一步说明细节,这是旧注册表格的屏幕截图。 enter image description here

我的最初想法是使其非常简单,并分别对待每行并存储金额。 OBGYN顾问可以选择的日期只是成为表中的另一行。

+----+---------------------------+----------------+------------------+
| ID |     Occupation/Level      | Base Price     | Early Bird Price |
+----+---------------------------+----------------+------------------+
|  1 | Residents                 | $1000          | $800             |
|  2 | Practitioners             | $1500          | $1300            |
|  4 | OBYGN_Consultant_Friday   | $800           | $900             |
|  5 | OBYGN_Consultant_Saturday | $800           | $900             |
|  6 | OBYGN_Consultant_Sunday   | $600           | $700             |
|  7 | OBYGN_Consultant_All_Days | $1900          | $2100            |
+----+---------------------------+----------------+------------------+

optional_materials 表将处理所有具有其他选项的课程。

+----+----------+-----------+--------+
| ID | CourseID |   Name    | Amount |
+----+----------+-----------+--------+
|  1 |        2 | Exam Prep | $500   |
+----+----------+-----------+--------+

看到此设计有任何重大问题,还是看到一种更好的处理方法?

1 个答案:

答案 0 :(得分:2)

取决于您将来的灵活性。例如,如果您想明年获得超早鸟价,或者您将支持其他货币,那么我会这样:

+----+----------+---------------------------+------------+-------+----------+
| ID | CourseID |           Title           | Price Type | Price | Currency |
+----+----------+---------------------------+------------+-------+----------+
|  1 |        1 | Residents                 | Base       |  1000 | Dollar   |
|  2 |        1 | Residents                 | Early      |   800 | Dollar   |
|  3 |        2 | Practitioners             | Base       |  1500 | Dollar   |
|  4 |        2 | Practitioners             | Early      |  1300 | Dollar   |
|  5 |        4 | OBYGN_Consultant_Friday   | Base       |   800 | Dollar   |
|  6 |        4 | OBYGN_Consultant_Friday   | Early      |   900 | Dollar   |
|  7 |        5 | OBYGN_Consultant_Saturday | Base       |   800 | Dollar   |
|  8 |        5 | OBYGN_Consultant_Saturday | Early      |   900 | Dollar   |
|  9 |        6 | OBYGN_Consultant_Sunday   | Base       |   600 | Dollar   |
| 10 |        6 | OBYGN_Consultant_Sunday   | Early      |   700 | Dollar   |
| 11 |        7 | OBYGN_Consultant_All_Days | Base       |  1900 | Dollar   |
| 12 |        7 | OBYGN_Consultant_All_Days | Early      |  2100 | Dollar   |
+----+----------+---------------------------+------------+-------+----------+

但是总的来说,您的方法是完全有效的。

还考虑在最后添加“创建”和“编辑”日期字段。使保持数据更改的透明度更加容易(也许您想突出显示仅可用或在过去14天左右的时间里已更改的选项)

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