數(shù)據(jù)庫(kù)管理系統(tǒng)的介紹
Raghu Ramakrishnan[ Database Management Systems( 3th Edition ),Wiley ,2004, 5-12
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　　　數(shù)據(jù)庫(kù)（database,有時(shí)拼作data base）又稱為電子數(shù)據(jù)庫(kù)，是專門組織起來的一組數(shù)據(jù)或信息，其目的是為了便于計(jì)算機(jī)快速查詢及檢索。數(shù)據(jù)庫(kù)的結(jié)構(gòu)是專門設(shè)計(jì)的，在各種數(shù)據(jù)處理操作命令的支持下，可以簡(jiǎn)化數(shù)據(jù)的存儲(chǔ)，檢索，修改和刪除。數(shù)據(jù)庫(kù)可以存儲(chǔ)在磁盤，磁帶，光盤或其他輔助存儲(chǔ)設(shè)備上。
Database Management Systems( 3th Edition ),Wiley ,2004, 5-12
　　　A introduction to Database Management System
　　　Raghu Ramakrishnan
　　　A database (sometimes spelled data base) is also called an electronic database , referring to any collection of data, or information, that is specially organized for rapid search and retrieva l by a computer. Databases are structured to facilitate the storage, retrieva l , modification, and deletion of data in conjunction with various data-processing operations .Databases can be stored on magnetic disk or tape, optical disk, or some other secondary storage device.