Lakshya Education MCQs

Question: Which of the following is NOT a type of SQL constraint?
Options:
A.PRIMARY KEY
B.FOREIGN KEY
C.ALTERNATE KEY
D.UNIQUE
Answer: Option C

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More Questions on This Topic :

Question 1. A ________ is a program that performs some common action on database data and that is stored in the database.
  1.    trigger
  2.    stored procedure
  3.    pseudofile
  4.    None of the above is correct.
Answer: Option B
Question 2. For what purposes are views used?
  1.    To hide columns only
  2.    To hide rows only
  3.    To hide complicated SQL statements only
  4.    All of the above are uses for SQL views.
Answer: Option D
Question 3. What is an SQL virtual table that is constructed from other tables?
  1.    Just another table
  2.    A view
  3.    A relation
  4.    Query results
Answer: Option B
Question 4. To update an SQL view, the DBMS must be able to associate the column(s) to be updated with:
  1.    a particular column in a particular underlying table.
  2.    a particular column in a particular row.
  3.    a particular row in a particular underlying table.
  4.    None of the above is correct.
Answer: Option C
Question 5. The SQL statement to create a view is:
  1.    CREATE VIEW
  2.    MAKE VIEW
  3.    SELECT VIEW
  4.    INSERT VIEW
Answer: Option A
Question 6. The DROP TABLE statement:
  1.    deletes the table structure only.
  2.    deletes the table structure along with the table data.
  3.    works whether or not referential integrity constraints would be violated.
  4.    is not an SQL statement.
Answer: Option B

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