Which one of the below is incorrect? *
COUNT(*) counts all rows
COUNT(column) counts non-NULLs
only
COUNT(1) is the same as COUNT(*) because 1 is a non-null expressions
None of the above
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In today's world surveys are very important to introduce any kind of product in market. For example, a car company first takes the survey to get information about choice of people about features of cars then prepare its car according
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