单选题Which statement is true regarding the INTERSECT operator?（）AIt ignores NULL values BReversing the order of the intersected tables alters the result CThe names of columns in all SELECT statements must be identical DThe number of columns and data types must be identical for all SELECT statements in the query
单选题
Which statement is true regarding the INTERSECT operator?（）
A
It ignores NULL values
B
Reversing the order of the intersected tables alters the result
C
The names of columns in all SELECT statements must be identical
D
The number of columns and data types must be identical for all SELECT statements in the query
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