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

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

出自：Oracle认证

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