Consider the ER diagram shown in Figure 3.22 for part of a BANK database. Each bank can have multiple branches, and each branch can have multiple accounts and loans. (c) What constraints do the partial key and the identifying relationship of the weak entity type specify in this diagram? (d) List the name of all relationship types.
Consider the ER diagram shown in Figure 3.22 for part of a BANK database. Each bank can have multiple branches, and each branch can have multiple accounts and loans. (c) What constraints do the partial key and the identifying relationship of the weak entity type specify in this diagram? (d) List the name of all relationship types.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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The class I'm taking is databass management in computer science!
I have attached the problem below! Please view both attachments before answering. I need help with both parts C and D please.Thank you so much!

Transcribed Image Text:Figure 3.22
An ER diagram for a BANK database schema.
BANK
Code Name
Addr
Phone
BRANCHES
ACCTS
Acct_no
Ssn
N
ACCOUNT
M
A_C
N
Balance
N
Name
CUSTOMER
Type
BANK BRANCH
Addr
Addr
Loan_no
LOANS
1
N
N
LOAN
M
LC
Branch no
Amount
Type

Transcribed Image Text:Consider the ER diagram shown in Figure 3.22 for part of a BANK database. Each bank
can have multiple branches, and each branch can have multiple accounts and loans.
(c) What constraints do the partial key and the identifying relationship of the weak entity
type specify in this diagram?
(d) List the name of all relationship types.
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