With the development of distributed computing and network technology, the traditional database technology can not meet the need of data sharing and interoperation. 隨著(zhù)分布計算和網(wǎng)絡(luò )技術(shù)的不斷發(fā)展,傳統的數據庫技術(shù)已越來(lái)越不能滿(mǎn)足數據共享和互操作的需要。