Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries.   Country (ID: integer, Name: String (unique)) City (serialNo: integer (unique, not null), CountryID: Integer, CityName: String, Population: integer)   A city can have unknown CityName?     No, violates domain constraints.       Yes.       No, violates entity Integrity constraint     No, violates key constraint.     No, violates referential integrity constraint

Q: Consider the database schema below for hotels in countries. A country have many hotels, and the same…

A: Lets see the solution.

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Q: QUESTION 3 Consider the following database schema for a library. Book (BookID:int,…

A: Foreign key :- A foreign key is a set of attributes in a table that refers to the primary key of…

Q: Consider the database schema below for cities in countries. A country have many cities, and the same…

A: Domain Constraint: It specifies that the value taken b the attributes in a relation must contain an…

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Q: Consider the following database schema designed to store information about Books, and Chapters. Book…

A: Here, I have to write queries for the above question.

Q: QUESTION 2 Consider the database schema below:    Company (CompnayID: integer, CompnayName:…

A: Definition of Candidate Key in DBMS: Candidate keys are super keys that don't have any redundant…

Q: QUESTION 6 Consider the following database schema for a library. Book (BooklD:int,…

A: The answer is True.

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Q: TASK

A: Hello student Greetings Hope you are doing great. As per our policy guidelines, in case of multiple…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: There is only one error in the above code and that is the ALTER TABLE command on the address table.…

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Q: Problem 82 Write a query to display the lowest book cost in the system (Figure P7.82).

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A: Due to the honor code, I can help you with 1st part. For 2nd part resubmit the question   From the…

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Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: SQL: Database management is done using a programming language called SQL, or Structured Query…

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Q: 1A. Consider the bank database schema as below. loan (loan_number, branch_name, amount) account…

A: Solution is given below :

Q: QUESTION 5 Consider the following relations in a University database: Student (SID, SName, Age, GPA)…

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Q: 5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the…

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Q: The database used for this question is a very simple one with the following schema: (Primary keys…

A: Hey, since there are multiple sub parts questions posted, we will answer first three question. If…

Q: Consider the following database schema designed to store information about Books, and Chapters.…

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Q: The database used for this question is a very simple one with the following schema: (Primary keys…

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Q: UESTION 14   Consider the database schema below for cities in countries. A country have many…

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A: Answer..

Q: Consider the following schema of hotel reservations database: Hotel (Hotel No. Name, City) Room…

A: Here is the Schema of above problem. See below step.