文件名称:db3
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数据库的完整性和安全性,掌握实体完整性规则的定义方法；掌握参照完整性规则的定义方法；掌握用户定义完整性的定义方法；掌握数据库安全性控制。
-Integrity and security of the database, define methods to master physical integrity rules master definition method referential integrity rules grasp define the integrity of user-defined methods master database security controls.
-Integrity and security of the database, define methods to master physical integrity rules master definition method referential integrity rules grasp define the integrity of user-defined methods master database security controls.
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201107183 肖英英 （实验3）.docx