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?
​

Answer 1

Explanation:

iwejue6ryr6rr6r6r7

r7lryryltutiirulrl7t7oto7y8y9uoipuoyi99j

z

smssjjsjejemememkedmkd