A database designer applied a process of logical design, and he/she transformed the conceptual schema into the following collection of relational schemas. CUSTOMER(cust Phone, name, preferences) KTV STUDIO(studioName, location, equipment List, rateType) BOOKING (cust Phone, studioName, statDateTime, duration, specialRequest) RATE(rateType,unt Price) (i) Find all functional and multivalued dependencies in the relational schemas CUSTOMER, KTVSTUDIO, BOOKING, and RATE. (ii) Find all minimal keys in the relational schemas CUSTOMER, KTVSTUDIO, BOOKING, and RATE. List the derivations of all minimal keys. (iii) (iv) For each one of the relational schemas find the highest normal form a schema is in. List the justifications for each highest normal form found. Decompose all relational schemas that are not in 4nF into 4NF. List all relational schemas obtained from the decompositions. Remember to indicate the primary key and foreign keys (if any).
A database designer applied a process of logical design, and he/she transformed the conceptual schema into the following collection of relational schemas. CUSTOMER(cust Phone, name, preferences) KTV STUDIO(studioName, location, equipment List, rateType) BOOKING (cust Phone, studioName, statDateTime, duration, specialRequest) RATE(rateType,unt Price) (i) Find all functional and multivalued dependencies in the relational schemas CUSTOMER, KTVSTUDIO, BOOKING, and RATE. (ii) Find all minimal keys in the relational schemas CUSTOMER, KTVSTUDIO, BOOKING, and RATE. List the derivations of all minimal keys. (iii) (iv) For each one of the relational schemas find the highest normal form a schema is in. List the justifications for each highest normal form found. Decompose all relational schemas that are not in 4nF into 4NF. List all relational schemas obtained from the decompositions. Remember to indicate the primary key and foreign keys (if any).
Computer Networking: A Top-Down Approach (7th Edition)
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Chapter1: Computer Networks And The Internet
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![Analysis of relational schemas and normalization
Consider the following conceptual schema of a sample database domain that
contains information about customers' booking of KTV studio.
book
has
CUSTOMER
KTVSTUDIO
custPhone
ID
startDateTime
ID
RATE
rateType
unitPrice
studioName
location
ID
name
preferences [0..*]
equipmentList [0..*]
BOOKING
duration
specialRequest [0..*]
A database designer applied a process of logical design, and he/she
transformed the conceptual schema into the following collection of relational
schemas.
CUSTOMER(cust Phone, name, preferences)
KTV STUDIO(studioName, location, equipment List, rateType)
BOOKING (cust Phone, studioName, statDateTime, duration, specialRequest)
RATE (rateType,unt Price)
(i)
Find all functional and multivalued dependencies in the relational schemas
CUSTOMER, KTVSTUDIO, BOOKING, and RATE.
(ii)
Find all minimal keys in the relational schemas CUSTOMER, KTVSTUDIO,
BOOKING, and RATE. List the derivations of all minimal keys.
(iii)
(iv)
For each one of the relational schemas find the highest normal form a
schema is in. List the justifications for each highest normal form found.
Decompose all relational schemas that are not in 4nF into 4NF. List all
relational schemas obtained from the decompositions. Remember to
indicate the primary key and foreign keys (if any).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdfef1900-6b6b-4241-b7c7-4b23c6e468f2%2Fc61f8661-369f-4ba7-b3c0-f31a1746475e%2Fd5w972u_processed.png&w=3840&q=75)
Transcribed Image Text:Analysis of relational schemas and normalization
Consider the following conceptual schema of a sample database domain that
contains information about customers' booking of KTV studio.
book
has
CUSTOMER
KTVSTUDIO
custPhone
ID
startDateTime
ID
RATE
rateType
unitPrice
studioName
location
ID
name
preferences [0..*]
equipmentList [0..*]
BOOKING
duration
specialRequest [0..*]
A database designer applied a process of logical design, and he/she
transformed the conceptual schema into the following collection of relational
schemas.
CUSTOMER(cust Phone, name, preferences)
KTV STUDIO(studioName, location, equipment List, rateType)
BOOKING (cust Phone, studioName, statDateTime, duration, specialRequest)
RATE (rateType,unt Price)
(i)
Find all functional and multivalued dependencies in the relational schemas
CUSTOMER, KTVSTUDIO, BOOKING, and RATE.
(ii)
Find all minimal keys in the relational schemas CUSTOMER, KTVSTUDIO,
BOOKING, and RATE. List the derivations of all minimal keys.
(iii)
(iv)
For each one of the relational schemas find the highest normal form a
schema is in. List the justifications for each highest normal form found.
Decompose all relational schemas that are not in 4nF into 4NF. List all
relational schemas obtained from the decompositions. Remember to
indicate the primary key and foreign keys (if any).
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