With each visit of this Database Management System online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.
Test Instructions Question type Randomized MCQs.Changes every time you visit the test Total Number of Questions 30 Time Limit 20 Minutes Points 1 Point for each Question
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Question 1 of 30
Q-1._________ is a virtual table that draws its data from the result of an SQL
SELECT statement.
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Question 2 of 30
Q-2.A DBMS query language is designed to
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Question 3 of 30
Q-3._______ produces the relation that has attributes of R1 and R2
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Question 4 of 30
Q-4.The database environment has all of the following components except:
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Question 5 of 30
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Question 6 of 30
Q-6.Which of the following is a comparison operator in SQL?
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Question 7 of 30
Q-7.which of the following is record based logical model?
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Question 8 of 30
Q-8.In E-R diagram generalization is represented by
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Question 9 of 30
Q-9.E-R model uses this symbol to represent weak entity set ?
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Question 10 of 30
Q-10.Relational Algebra is
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Question 11 of 30
Q-11.A data dictionary is a special file that contains:
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Question 12 of 30
Q-12.Which of the following is a legal expression in SQL?
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Question 13 of 30
Q-13.Architecture of the database can be viewed as
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Question 14 of 30
Q-14.Which of the following operation is used if we are interested in only certain columns of a
table?
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Question 15 of 30
Q-15.The relational model feature is that there
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Question 16 of 30
Q-16.Which of the following operations need the participating relations to be union compatible?
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Question 17 of 30
Q-17. What is a relationship called when it is maintained between two entities?
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Question 18 of 30
Q-18.It is better to use files than a DBMS when there are
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Question 19 of 30
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Question 20 of 30
Q-20.Key to represent relationship between tables is called
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Question 21 of 30
Q-21.SET concept is used in :
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Question 22 of 30
Q-22.In case of entity integrity, the primary key may be
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Question 23 of 30
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Question 24 of 30
Q-24.Which of the following is a valid SQL type?
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Question 25 of 30
Q-25.A relational database developer refers to a record as
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Question 26 of 30
Q-26.The property / properties of a database is / are :
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Question 27 of 30
Q-27.It is possible to define a schema completely using
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Question 28 of 30
Q-28.To delete a particular column in a relation the command used is:
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Question 29 of 30
Q-29.Count function in SQL returns the number of
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Question 30 of 30
Q-30.The way a particular application views the data from the database that the application
uses is a
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