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SQL and relational databases · Multiple Choice
Difficulty: Easy
A column contains [NULL, 9, 10, 11, NULL, 13, 14]. What does COUNT(column) return?
Aggregation
Nulls
Choose your answer
A
6
B
4
C
13
D
5
Check answer
More in SQL and relational databases →
A column contains [NULL, 9, 10, 11, NULL, 13, 14]. What does COUNT(column) return? | SWE Maxx