CS计算机代考程序代写 database AI algorithm ER CS3402 Database Systems:
CS3402 Database Systems: ER , Relational Data Model CS3402 ER Model Concepts Revisited Entity: an object represented in the database For example, an employee ‘John Smith’ Attribute: properties used to describe an entity/relationship For example, an EMPLOYEE entity may have Name, ID, Address, EMPLOYEE Sex, BirthDate ID Sex Name BirthDate Relationship: an […]
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