Consider the database schema below.Fruit (ID: integer, Name: String )Vitamin (FruitID: Integer. VitaminName: String, VitaminPercentage)A Fruit name can have null value?No, violates key constraint.Yes.No, violates entity Integrity constraintNo, violates referential integrity constraint.No, violates domain constraints.

In the Fruit table, Name is not a primary key. Key constraint states thate all the values of primary…

Consider the database schema below. Fruit (ID: integer. Name: String ) Vitamin (FruitID: Integer. VitaminName: String, VitaminPercentage) A Fruit name can have null value? O No, violates key constraint. Yes. | No, violates entity Integrity constraint No, violates referential integrity constraint. O No, violates domain constraints.

Consider the database schema below. Fruit (ID: integer. Name: String ) Vitamin (FruitID: Integer. VitaminName: String, VitaminPercentage) A Fruit name can have null value? O No, violates key constraint. Yes. | No, violates entity Integrity constraint No, violates referential integrity constraint. O No, violates domain constraints.

Database Systems: Design, Implementation, & Management

11th Edition

ISBN:9781285196145

Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Chapter10: Transaction Management And Concurrency Control

Section: Chapter Questions

Problem 1P

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Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) The same value of VitaminPercentage can be entered for different FruitID? O No, violates domain constraints. No, violates key constraint. No, violates entity Integrity constraint. No, violates referential integrity constraint. Yes.
QUESTION 3 Consider the database schema below. Fruit (ID: integer, Name: String ) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) Two Fruit records with different FruitID can have the same Name? O Yes. No, violates key constraint. O No, violates referential integrity constraint. No, violates domain constraints. O No, violates entity Integrity constraint
Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) In vitamin, the same FruitID can have two different VitaminName ? No, violates key constraint. No, violates referential integrity constraint. No, violates domain constraints. Yes. O No, violates entity Integrity constraint
QUESTION 3 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) In vitamin, the same FruitID can have two different VitaminName ? O No, violates domain constraints. Yes. No, violates referential integrity constraint. No, violates entity Integrity constraint No, violates key constraint.
Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage (not null) A Vitami can have unknown VitaminPercentage ? Yes. No, violates referential integrity constraint. No, violates domain constraints. No, violates entity Integrity constraint No, violates key constraint.
QUESTION 6 Consider the database schema below. Fruit (ID: integer, Name: String ) Vitamin (FruitID: Integer. VitaminName: String, VitaminPercentage) A Fruit name can have null value? O No, violates domain constraints. O No, violates entity Integrity constraint O Yes. No, violates key constraint. O No, violates referential integrity constraint.
QUESTION 5 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer. VitaminName: String, VitaminPercentage) In vitamin, the same FruitID can have two different VitaminName ? O No, violates domain constraints. No, violates referential integrity constraint. No, violates entity Integrity constraint O No, violates key constraint. O Yes.
QUESTION 5 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) The same value of VitaminPercentage can be entered for different FruitID? Yes. O No, violates domain constraints. O No, violates entity Integrity constraint. O No, violates referential integrity constraint. No, violates key constraint.
QUESTION 6 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) A Fruit have unknown ID? O Yes. No, violates referential integrity constraint. No, violates entity Integrity constraint No, violates domain constraints. No, violates key constraint.
Based on the following database schemas: Homestay (homestayNo (PK), homestayName, address, telNo, city)Room (roomNo, homestayNo (PK), type, price)Booking (homestayNo, guestNo (PK), dateFrom, dateTo, roomNo) Guest (guestNo (PK), guestName, guestAddress, guestTelNo) Assume the following indexes exist:a) a hash index with no overflow on the roomNo and homestayNo as a composite primary key in Room;b) a clustering index on the foreign key attributes homestayNo in Room;c) a B⁺-tree index on the price attribute in Room;d) a secondary index on the attribute type in Room. nTuples(Room) = 20000 bFactor(Room) = 200nTuples(Homestay) = 100 bFactor(Homestay) = 40nTuples(Booking) = 100000 bFactor(Booking) = 60nDistincthomestayNo(Room) = 50 nDistinctroomNo(Booking) = 150nDistincttype(Room) = 10…
QUESTION 2 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) Two Fruits can have the same name but different Fruit ID? O No, violates entity Integrity constraint O Yes. O No, violates domain constraints. O No, violates key constraint. No, violates referential integrity constraint.
Based on the following database schemas:Homestay (homestayNo (PK), homestayName, address, telNo, city)Room (roomNo, homestayNo (PK), type, price)Booking (homestayNo, guestNo (PK), dateFrom, dateTo, roomNo)Guest (guestNo (PK), guestName, guestAddress, guestTelNo)Assume the following indexes exist:a) a hash index with no overflow on the roomNo and homestayNo as a composite primary key in Room;b) a clustering index on the foreign key attributes homestayNo in Room;c) a B+-tree index on the price attribute in Room;d) a secondary index on the attribute type in Room.nTuples(Room) = 20000 bFactor(Room) = 200nTuples(Homestay) = 100 bFactor(Homestay) = 40nTuples(Booking) = 100000 bFactor(Booking) = 60nDistincthomestayNo(Room) = 50 nDistinctroomNo(Booking) = 150nDistincttype(Room) = 10 nDistincthomestayName(Homestay) = 50nDistinctprice(Room) = 500 maxprice(Room) = 500minprice(Room) = 200 nLevelstype(I) = 2nLevelshomestayNo(I) = 2 nLfBlocksprice(I) = 50nLevelsprice(I) = 2 Log2100 = 6.64Log250 =…

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