單項(xiàng)選擇題
A.數(shù)據(jù)庫關(guān)系圖B.數(shù)據(jù)庫系統(tǒng)C.數(shù)據(jù)庫D.數(shù)據(jù)庫應(yīng)用系統(tǒng)
A.CREATEDATABASE B.ALTERDATABASE C.DROPDATABASE D.DELECTDATABASE
A.Java B.C C.SQL D.C++