A.數(shù)據(jù)查詢 B.數(shù)據(jù)操縱 C.數(shù)據(jù)定義 D.數(shù)據(jù)控制
A.選擇行條件 B.對查詢進(jìn)行排序 C.列表 D.分組條件
A.IN或者NOTIN B.LIKE或者NOTLIKE C.AND D.BETWEENAND