HW6.pdf - 9.3 Try to map the relational schema in Figure...

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Unformatted text preview: 9.3. Try to map the relational schema in Figure 6.6 into an ER schema. This is part of a process known as reverse engineering, where a conceptual schemais created for an existing implemented database. State any assumptions you make. Author Name BOOKID — BOOK NO. OF COPIES BRANCH ID B_P — PUBLISHER DATE_OUT BOOK_LOANS DUE _DATE BRANCH NAME NAME ADDRESS LIBRARY_BRANCH ADDRESS BORROWER 9.5 RELATIONAL SCHEMA BANK CODE NAME ADDR W ACCOUNT ACCT NO BALANCE TYPE CODE BRANCH_NO W LOAN LOAN NO AMOUNT TYPE CODE BMNCH NO fl CUSTOMER PHONE SSN NAME ADDR fir fiH BANK BRANCH ADDR BRANCH_NO CODE LC SSN LOAN NO AC ACC_NO SSN 5 SEQUENCE DIAGRAM m nv m .m C 5 StrawHause e Third I] 9 She 01:5 and misses 14mm: Edie up 1:Euildn - Firstlitte i :1' ...
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