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COP 4703 Question and answers verified to pass 2024

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COP 4703 Question and answers verified to pass 2024 COP 4703 Which of the following is the database implementation of the referential integrity rule? A. Foreign Key B. Primary Key C. Legal Value constraint D. Candidate Key - correct answer A What are the properties of union compatibi...

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  • September 7, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • cop 4703
  • cop 4703 question and answers verified to pass 202

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COP 4703
Which of the following is the database implementation of the referential
integrity rule?


A. Foreign Key
B. Primary Key
C. Legal Value constraint
D. Candidate Key - correct answer ✔A


What are the properties of union compatibility?


A. must have same number of columns
B. columns must contain only strings
C. only two queries are allowed
D. columns must have the same data type - correct answer ✔A, D


Which is the correct SQL structure to in the database which will make a select
query perform faster is implemented correctly?


A. Check
B. View
C. Index
D. Constraint - correct answer ✔C


A mobile product manager wants to build a database to track the team's
mobile products.

, How would you create the table for a Product which needs to contain
ProductId (PrimaryKey), Product Name, Product Type (Which can only
contain the values "Platform", "Utility" or "Game"), Priority and Delivery Date?


A. select into table Product(ProductID char(8) primary key,productName
varchar(50),productType varchar(20) prority int,deliverydate date)


B. create table Product(ProductID char(8) primary key,productName
varchar(50),productType varchar(20) check (productType in
('Platform','Utility','Game')),priority int,deliverydate date)


C. insert table Product(ProductID char(8) primary key,productName
varchar(50),productType varchar(20) constraint (productType in
('Platform','Utility','Game')),prority int,deliverydate date)


D. create table Product(ProductID char(8) primary key,productName
varchar(50),productType varchar(20) for - correct answer ✔B


Remove any developer records whose "job title" column is that of a tester
from the table. ?


A. Delete from developer where jobtitle = 'tester'


B. Alter developer delete * where jobtitle = 'tester'


C. Delete developers from developer where jobtitle = 'tester'


D. Drop developer where jobtitle = 'tester' - correct answer ✔A

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