多項(xiàng)選擇題SQL語言中,是邏輯運(yùn)算符號(hào)的()

A.AND
B.NOT
C.OR
D.XOR


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2.多項(xiàng)選擇題Northwind數(shù)據(jù)庫(kù)中有一名為Products的表用于存放所有產(chǎn)品的信息,現(xiàn)在要想列出所有單價(jià)(UnitPrice)在20和40元之間的產(chǎn)品信息,則下列滿足要求的SQL語句有()

A.SELECT * FROM Products WHERE UnitPrice >= 20 OR UnitPrice <= 40 
B.SELECT * FROM Products WHERE UnitPrice BETWEEN 20 OR 40
C.SELECT * FROM Products WHERE UnitPrice >= 20 AND UnitPrice <= 40
D.SELECT * FROM Products WHERE UnitPrice BETWEEN 20 AND 40