
SQL and DBMS Quiz 2
Quiz
•
Computers
•
12th Grade
•
Practice Problem
•
Medium
Praveen Kumar
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many properties of transactions are there?
A. 4
B. 5
C. 6
D. 7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the DISTINCT keyword in SQL?
A. It filters the rows returned by the SELECT statement.
B. It specifies the columns to be retrieved.
C. It removes duplicate rows from the result set.
D. It orders the results in ascending or descending order.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
RDBMS applications stores data
A. In tabular form
B. As file
C. Both a and b
D. None of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What For each attribute of a relation, there is a set of permitted values, called the of that attribute.
A. Dictionaries
B. Domain
C. Directory
D. Relation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does NULL value specify in RDBMS?
A. The field is set to Zero
B. The field is set to Infinite
C. The field is left blank
D. The field is set to Whole Number
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
X is read from a database and stored in a buffer in main memory with the operation.
A. Read
B. Write
C. Commit
D. Rollback
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Redundancy is reduced in a database table by using the form.
A. Abnormal
B. Normal
C. Special
D. None
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