A.數(shù)據(jù)庫就只有mysql B.數(shù)據(jù)庫就是一個(gè)大型實(shí)體倉(cāng)庫 C.數(shù)據(jù)庫是一個(gè)存儲(chǔ)數(shù)據(jù)的倉(cāng)庫 D.數(shù)據(jù)庫是以數(shù)組的方式存放數(shù)據(jù)的