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Primary level practice questions (5 questions)

Practice these primary level questions with sample file.txt to enhance exam readiness and develop your skills effectively.

Question 1

What does the expression '555*if(now()=sysdate(),sleep(15),0)' in an SQL context typically do?

D) Always returns 0 because the condition is never true. C) Causes an error due to incorrect syntax. A) Checks if the current date matches the server date and sleeps for 15 seconds if true. B) Multiplies 555 by the result of the IF condition that checks if the current time matches the system time.

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