如果您使用固定系数方法或载入具体比例，那么当这些百分比变更或您添加了特定公司时您需要小心。
If you use the fixed coefficient method or load in specific percentage then you need to be careful when these percentages change or if you add a particular company.
必须注意确保对象到关系数据库映射的正确性，理想情况下，应该将代码设计成在需求变更时所需的更改最小。
Proper care must be taken to ensure that object-relational database mappings are correct, and ideally the code should be designed to minimize the changes necessary when requirements change.
在关系数据频繁变更，而一致性又很关键的情况下，使用复制可能就没有意义了。
It may not make sense to use replication in cases where the relational data are changing frequently and consistency is critical.
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