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常見的資料庫限制(Database Constraint)大致上可分為三類:
1.Inherent model-based constaints 或 Implicit constraints
2.Schema-based constaints 或Explicit constraints
3.Application-based 或Semantic constaints或Business rule
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常見的資料庫限制(Database Constraint)大致上可分為三類:
1.Inherent model-based constaints 或 Implicit constraints
2.Schema-based constaints 或Explicit constraints
3.Application-based 或Semantic constaints或Business rule