Question: Which statement about the COUNT function is true? The COUNT function always ignores null values by default. The COUNT function can be used to find

Which statement about the COUNT function is true?
The COUNT function always ignores null values by default.
The COUNT function can be used to find the maximum value in each column.
The COUNT function ignores duplicates by default.
The COUNT function can be used to determine the number of unique, non-null values in a column.

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