Answer Happy

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 startDateTime CUSTOMER custPhone ID name preferencesto..1 KTVSTUDIO studioName TD location equipmentList/0..) RATE rateType unit Price 10 BOOKING duration special Request to.." A database designer applied a process of logical design, and he/she transformed the conceptual schema into the following collection of relational schemas. CUSTOMER(custPhone, name, preferences) KTVSTUDIO(studioName, location, equipment List,rateType) BOOKING(custPhone,studioName, statDateTime,duration, specialRequest)
A database designer applied a process of logical design, and he/she transformed the conceptual schema into the following collection of relational schemas. CUSTOMER (custPhone, name, preferences) KTV STUDIO(studioName, location, equipment List rateType) BOOKING(custPhone,studioName, statDateTime, duration, special Request) RATE(rateType, untPrice) (0) (ii) (iii) Find all functional and multivalued dependencies in the relational schemas CUSTOMER, KTVSTUDIO, BOOKING, and RATE. Find all minimal keys in the relational schemas CUSTOMER, KTVSTUDIO, BOOKING, and RATE. List the derivations of all minimal keys. 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). (iv)