浅谈数据库中的完整性约束 |
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引用本文: | 林立云.浅谈数据库中的完整性约束[J].计算机光盘软件与应用,2011(20). |
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作者姓名: | 林立云 |
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作者单位: | 吉林工商学院,长春,130062 |
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摘 要: | 数据完整性是指数据的正确性、完备性和一致性,是衡量数据库质量好坏的标准。本文从以下三个方面分析了数据的完整性。即实体完整性、参照完整性和用户自定义完整性。
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关 键 词: | 实体完整性 用户定义完整性 参照完整性 |
Database Integrity Constraints Study |
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Abstract: | Data integrity refers to data accuracy, completeness and consistency of the database is a measure of the quality standards of good and bad.In this paper, the following three aspects of data integrity.That entity integrity, referential integrity, and user-defined integrity. |
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Keywords: | Physical integrity User-defined integrity Referential integrity |
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