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2025-11-06 09:53:12 +08:00
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1. 数据库的完整性是指数据的正确性和相容性。数据的正确性是指数据是符合现实世界语义、反应当前实际状况的；数据的相容性是指数据库同一对象在不同关系表中的数据是符合逻辑的。
4. 提供定义完整性约束条件的机制、提供完整性检查的方法、进行违约处理