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GATE CS - Databases (DBMS)
Practice ER model, normalization, SQL queries, transactions, and indexing
50 questions•5 pages•~75 min
Use this quiz track to strengthen recall, speed, and exam-style decision making. Attempt one page first, review explanations, and then re-attempt incorrect questions without notes.
A good scoring strategy is to mark uncertain questions, finish known ones quickly, and return with elimination logic. This improves accuracy while keeping momentum under time constraints.
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Page 5 of 5 • Questions 41-50 of 50
Q41easy
What is the main purpose of the CHECK constraint?
Q42easy
What is the main purpose of the UNIQUE constraint?
Q43easy
What is the main purpose of the DEFAULT constraint?
Q44easy
What is the main purpose of the NOT NULL constraint?
Q45easy
What is the main purpose of the PRIMARY KEY constraint?
Q46easy
What is the main purpose of the FOREIGN KEY constraint?
Q47easy
What is the main purpose of the LIKE operator?
Q48easy
What is the main purpose of the BETWEEN operator?
Q49easy
What is the main purpose of the IN operator?
Q50easy
What is the main purpose of the NULL value?
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