我目前正在开发一个大型MySQL数据库，其中包含4个主要表，如下所示：
表格损坏循环
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| Damage Loop No | Description | Minimum Remaining Life |
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| abc | pie | 5 |
| xyz | apple | 15 |
| ... | ... | ... |
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表设备
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| Damage Loop No | Equipment No | Description | Minimum Remaining Life |
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| abc | X100 | pie slice 1 | 5 |
| abc | X200 | pie slice 2 | 20 |
| xyz | B100 | apple slice 1 | 15 |
| xyz | B200 | apple slice 2 | 30 |
| ... | ... | ... | ... |
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表格监控位置
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| Damage Loop No | Equipment No | CML No | Description | Corrosion Rate | Wall Thickness | Allowable Wall Thickness | Remaining Life |
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| abc | X100 | 1 | Location 1 | 0.2 | 3 | 2 | 5
| abc | X100 | 2 | Location 2 | 0.2 | 4 | 2 | 10
| xyz | B100 | 1 | Location 1 | 0.2 | 5 | 2 | 15
| xyz | B100 | 2 | Location 2 | 0.2 | 6 | 2 | 20
| ... | ... | ... | ... | ... | ... | ... | ...
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表格检查
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| Damage Loop No | Equipment No | CML No | Inspection No | Wall Thickness |
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| abc | X100 | 1 | 1 | 5 |
| abc | X100 | 1 | 2 | 10 |
| abc | X100 | 1 | 3 | 3 |
| ... | ... | ... | ... | ... |
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现在这些表都有相互依赖的计算，我希望根据用户在数据库中更改的值来执行这些计算。例如，如果我们查看[Damage Loop]。[最小剩余寿命]。计算如下......
[Damage Loop].[Minimum Remaining Life] = Min([Equipment].[Minimum Remaining Life] For Associated Records)
[设备]。[最低剩余寿命]计算如下......
[Equipment].[Minimum Remaining Life] = Min([Monitoring Location].[Remaining Life] For Associated Records)
[监测地点]。[剩余寿命]计算如下......
[Monitoring Location].[Remaining Life] = ([Wall Thickness] - [Allowable Wall Thickness])/[Corrosion Rate]
Where...
[Wall Thickness] = Min([Inspection].[Wall Thickness] for associated records)
[Allowable Wall Thickness] = Manual input
[Corrosion Rate] = Manual input
因此，如果用户更改[监控位置]。[允许的墙厚度]字段，我希望触发器仅重新计算以下字段...
[Monitoring Location].[Remaining Life]
[Equipment].[Remaining Life]
[Damage Loop].[Remaining Life]
但如果用户更改[检查]。[壁厚]字段，我希望触发器执行以下计算...
[Monitoring Location].[Wall Thickness]
[Monitoring Location].[Remaining Life]
[Equipment].[Remaining Life]
[Damage Loop].[Remaining Life]
即。只重新计算用户更改字段依赖的字段。
我在我的系统中基本上有数百个这样的计算，并且想要一种非常有效且结构化的方式，只根据用户在数据库中的变化重新计算相关字段。我想避免为系统中的每个可能情况编写特定的触发器。关于如何实现这一目标的任何想法？