Database Ch 13

擴充實體關係模式補充 (Enhanced Entity-Relationship Model)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],員工姓名身分證地址 d 秘書技術師打字速度級別

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A B C U

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A B C

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],C d A B

UML (Universal Modeling Language) 類別名稱：類別等同於實體型態屬性運算方式 get-method() Get-trandTime() …… tNO payment bankId bankName cardType cardId dueDate transTime method Transaction

[object Object],[object Object],[object Object],[object Object],[object Object]

Database Ch 13

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Database Ch 13