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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1.多項(xiàng)選擇題已知數(shù)據(jù)庫(kù)的排序規(guī)則是默認(rèn)設(shè)置。在northwind數(shù)據(jù)庫(kù)中有一個(gè)表[orderdetails],表示所有定單的詳情,該表中有一列quantity,表示定單中某產(chǎn)品的數(shù)量。你想實(shí)現(xiàn)按照產(chǎn)品數(shù)量從小到大排序來查詢定單,使用orderby子句為()
A.Select * from [order details] Order by quantity desc
B.Select * from [order details] Order by quantity asc
C.Select * from [order details] Order by quantity
D.Select * from [order details] Order by desc quantity
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