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A column contains [NULL, 3, 4, 5, NULL, 7, 8, 9, NULL]. What does COUNT(column) return? | SWE Maxx
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SQL and relational databases · Multiple Choice
Difficulty: Easy
A column contains [NULL, 3, 4, 5, NULL, 7, 8, 9, NULL]. What does COUNT(column) return?
Aggregation
Nulls
Choose your answer
A
7
B
6
C
15
D
5
Check answer
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