Question

Sarika has entered the following SQL command on Table ‘Result’ that has TotalMarks as one of the

columns: (2)

SELECT Count(TotalMarks) from RESULT;

The output displayed is 42.

Then Sarika enters the following command:

Select count(*) from RESULT;

Now the output displayed is 50.

Whatwill be the possible reason fordifferent outputs?Howmany totalrecords are there in thetable Result?
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Answer 1

Answer:

Explanation:

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