Database Concepts (7th Edition)
7th Edition
ISBN: 9780133544626
Author: David M. Kroenke, David J. Auer
Publisher: PEARSON
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Chapter 5, Problem 5.8RQ
Explain how supertype and subtype entities are transformed into tables.
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When using subtype associations, talk about the database table choices that are accessible.
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Chapter 5 Solutions
Database Concepts (7th Edition)
Ch. 5 - Explain how entities are transformed into tables.Ch. 5 - Prob. 5.2RQCh. 5 - Prob. 5.3RQCh. 5 - What is denormalization?Ch. 5 - Prob. 5.5RQCh. 5 - Explain the problems that denormalized tables may...Ch. 5 - Explain how the representation of weak entities...Ch. 5 - Explain how supertype and subtype entities are...Ch. 5 - Prob. 5.9RQCh. 5 - Prob. 5.10RQ
Ch. 5 - Show two different ways to represent the 1:1...Ch. 5 - Prob. 5.12RQCh. 5 - Prob. 5.13RQCh. 5 - Prob. 5.14RQCh. 5 - Prob. 5.15RQCh. 5 - Prob. 5.16RQCh. 5 - For your answer to question 5.15, code an SQL...Ch. 5 - Prob. 5.18RQCh. 5 - Prob. 5.20RQCh. 5 - Prob. 5.21RQCh. 5 - Explain how the terms parent table and child table...Ch. 5 - For your answers to questions 5.20, 5.21, and...Ch. 5 - Prob. 5.24RQCh. 5 - Prob. 5.25RQCh. 5 - Prob. 5.26RQCh. 5 - Prob. 5.27RQCh. 5 - Prob. 5.28RQCh. 5 - Define the three types of recursive binary...Ch. 5 - Prob. 5.30RQCh. 5 - Prob. 5.31RQCh. 5 - Prob. 5.32RQCh. 5 - Prob. 5.33RQCh. 5 - Prob. 5.34RQCh. 5 - Code an SQL statement that creates a table with...
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- Define second normal form. What types of problems might you encounter using tables that are not in second normal form?arrow_forwardImplement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: Implement the entity as a new phone table. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply…arrow_forwardImplement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: Implement the entity as a new phone table. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply…arrow_forward
- Change ER DIAGRAM TO RELATIONAL SCHEMA. WRONG QUERRY DOWNVOTE GURANTEE THANK YOUarrow_forwardNeed help making a database in SQL based on the given information Logical Database Design-Bank(Bank_Code, Name, Address)Primary Keys(Bank_Code)Foreign Keys(Name, Address)-Bank Rewards(Time_With_Bank, Points Earned)Foreign Keys(Time_With_Bank, Points Earned)-Bank_Branch(Address, Branch_No)Foreign Keys(Address, Branch_No)-Loan(Loan_No, Type, Amount)Primary Keys(Loan_No)Foreign Keys(Type, Amount)-Account(Account_No, Type)Primary Keys(Account_No)Foreign Keys(Type)-Checkings(Account_No, Last_4_Of_SSN, Name)Primary Keys(Account_No)Foreign Keys(Last_4_Of_SSN, Name)-Savings(Account_No, Last_4_Of_SSN, Name)Primary Keys(Account_No)Foreign Keys(Last_4_Of_SSN, Name)-Costumer(SSN, Name, Phone_Number, Address)Primary Keys(SSN)Foreign Keys(Name, Phone_Number, Address)Relationships-Branch- bank:bank_branch, 1:N-Accounts- bank_branch:account, 1:N-Loans- bank_branch:loan, 1:N-Own- account: customer, N: M-Barrow- loan:customer, N:Marrow_forwardThe various database table choices should be discussed when dealing with subtype associations.Discuss the issues that are relevant to the layout you decide to utilize.arrow_forward
- How do data modeling techniques vary between traditional relational columns and JSON/XML columns?arrow_forwardImplement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the diagram below The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: Implement the entity as a new phone table. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply these…arrow_forward97. The column header of table in relational model terminology is classified as a. attribute b. table starter c. table ender d. entity domainarrow_forward
- SQL DDL corresponding to this schema (i.e. the CREATE TABLE statements Database Schema:branch ( branch_name, branch_city, assets )customer ( ID, customer_name, customer_street, customer_city )loan ( loan_number, branch_name, amount )borrower ( ID, loan_number )account ( account_number, branch_name, balance )depositor ( ID, account_number )arrow_forward32. In a relational model, relations are termed as a. Tuples b. Attributes c. Rows d. Tablesarrow_forwardDefine “correlated subqueries”.arrow_forward
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