我刚刚开始学习数据建模,希望您对我设计逻辑模型和物理模型的方式有看法。
问题。
1) 一个人可以拥有多个地块。
2) 一个地块可以为多人所有
3) 一个人可以拥有不同类型的地块所有权
--------- Owner ---------
| Land |<--------------->| Person |
--------- Owned by ---------
| |
V V
----------------------------------
| Ownership Type (sole/joint ) |
----------------------------------
土地图式
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Plot no: | Area sq.meters
----------------------------------------
A1 | 100
A2 | 200
人物模式
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Person Id | Name
----------------------------------------
1 | Tom
2 | Harry
3 | Jones
所有权类型架构(单一/联合)
----------------------------------------
Type | Description<br>
----------------------------------------
Sole | Single owner<br>
Joint - 1 | Joint owner ( first name in the sale deed)
Joint - 2 | Joint owner ( 2nd name in the sale deed)
Joint - 3 | Joint owner ( 3rd name in the sale deed)
Person_Land_Ownership 模式
--------------------------------------------------------
Peson Id | Plot no: | Ownership Type
-------------------------------------------------------
1 | A1 | Sole
2 | A2 | Joint - 1
3 | A2 | Joint - 2
请就上述建模方法提供意见/批评/建议。