如何設(shè)計(jì)開發(fā)數(shù)據(jù)庫應(yīng)用系統(tǒng)數(shù)據(jù)庫應(yīng)用系統(tǒng)設(shè)計(jì)概述1數(shù)據(jù)庫設(shè)計(jì)概述1.1數(shù)據(jù)庫系統(tǒng)設(shè)計(jì)內(nèi)容數(shù)據(jù)庫設(shè)計(jì)包括兩個(gè)方面。2數(shù)據(jù)庫設(shè)計(jì)步驟3數(shù)據(jù)庫結(jié)構(gòu)設(shè)計(jì)3.1需求分析需求分析的目標(biāo)是準(zhǔn)確了解系統(tǒng)的應(yīng)用環(huán)境,了解和分析用戶對(duì)數(shù)據(jù)和數(shù)據(jù)處理的需求,1.結(jié)構(gòu)特征設(shè)計(jì)結(jié)構(gòu)特征設(shè)計(jì)通常是指數(shù)據(jù)庫模式或數(shù)據(jù)庫結(jié)構(gòu)設(shè)計(jì),應(yīng)該有一個(gè)最小冗余的系統(tǒng),能夠滿足不同用戶的數(shù)據(jù)需求,實(shí)現(xiàn)數(shù)據(jù)共享。1、如何設(shè)計(jì)開發(fā)數(shù)據(jù)庫應(yīng)用系統(tǒng)數(shù)據(jù)庫應(yīng)用系統(tǒng)設(shè)計(jì)概述1數(shù)據(jù)庫設(shè)計(jì)概述1.1數(shù)據(jù)庫系統(tǒng)設(shè)計(jì)內(nèi)容數(shù)據(jù)庫設(shè)計(jì)包括兩個(gè)方面。1.結(jié)構(gòu)特征設(shè)計(jì)結(jié)構(gòu)特征設(shè)...
更新時(shí)間:2023-07-25標(biāo)簽: 數(shù)據(jù)流定義字典內(nèi)容數(shù)據(jù)定義數(shù)據(jù)流 全文閱讀