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A column contains [NULL, 4, NULL, 6, NULL, 8, NULL, 10, NULL, 12]. What does COUNT(column) return? | SWE Maxx
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SQL and relational databases · Multiple Choice
Difficulty: Easy
A column contains [NULL, 4, NULL, 6, NULL, 8, NULL, 10, NULL, 12]. What does COUNT(column) return?
Aggregation
Nulls
Choose your answer
A
4
B
13
C
5
D
6
Check answer
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