SQL Server MCQs with answers Page - 18

Here, you will find a collection of MCQ questions on SQL Server. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. The UPDATE SQL clause can _____________

  • (A) update only one row at a time
  • (B) update more than one row at a time
  • (C) delete more than one row at a time
  • (D) delete only one row at a time

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Q. The UNION SQL clause can be used with _____________

  • (A) SELECT clause only
  • (B) DELETE and UPDATE clauses
  • (C) UPDATE clause only
  • (D) All of the mentioned

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Q. Which SQL statement is used to return only different values?

  • (A) SELECT DIFFERENT
  • (B) SELECT UNIQUE
  • (C) SELECT DISTINCT
  • (D) SELECT ALL

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Q. How can you change “Hansen” into “Nilsen” in the “LastName” column in the Persons table?

  • (A) UPDATE Persons SET LastName=’Hansen’ INTO LastName=’Nilsen’
  • (B) MODIFY Persons SET LastName=’Nilsen’ WHERE LastName=’Hansen’
  • (C) MODIFY Persons SET LastName=’Hansen’ INTO LastName=’Nilsen’
  • (D) UPDATE Persons SET LastName=’Nilsen’ WHERE LastName=’Hansen’

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Q. Which TCL command undo all the updates performed by the SQL in the transaction?

  • (A) DELETE
  • (B) TRUNCATE
  • (C) COMMIT
  • (D) ROLLBACK

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Q. SQL query to find all the cities whose humidity is 95.

  • (A) SELECT city WHERE humidity = 95
  • (B) SELECT city FROM weather WHERE humidity = 95
  • (C) SELECT humidity = 89 FROM weather
  • (D) SELECT city FROM weather

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Q. What is the meaning of LIKE ‘%0%0%’?

  • (A) Feature has two 0’s in it, at any position
  • (B) Feature has more than two 0’s
  • (C) Feature ends with two 0’s
  • (D) Feature begins with two 0’s

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Q. Find the names of these cities with temperature and condition whose condition is neither sunny nor cloudy.

  • (A) SELECT city, temperature, condition FROM weather WHERE condition NOT IN (‘sunny’, ‘cloudy’)
  • (B) SELECT city, temperature, condition FROM weather WHERE condition NOT BETWEEN (‘sunny’, ‘cloudy’)
  • (C) SELECT city, temperature, condition FROM weather WHERE condition IN (‘sunny’, ‘cloudy’)
  • (D) SELECT city, temperature, condition FROM weather WHERE condition BETWEEN (‘sunny’, ‘cloudy’);

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Q. Find the name of those cities with temperature and condition whose condition is either sunny or cloudy but temperature must be greater than 70.

  • (A) SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ AND condition = ‘cloudy’ AND temperature > 70
  • (B) SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ OR condition = ‘cloudy’ AND temperature > 70
  • (C) SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ OR condition = ‘cloudy’ OR temperature > 70
  • (D) SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ AND condition = ‘cloudy’ OR temperature > 70

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Q. Find all the tuples having a temperature greater than ‘Paris’.

  • (A) SELECT * FROM weather WHERE temperature > ‘Paris’ temperature
  • (B) SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = ‘Paris’)
  • (C) SELECT * FROM weather WHERE temperature > (SELECT * FROM weather WHERE city = ‘Paris’)
  • (D) SELECT * FROM weather WHERE temperature > (SELECT temperature FROM weather WHERE city = ‘Paris’

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