南京理工大学计算机学号6,计算机系的外文翻译6.doc

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计算机系的外文翻译6.doc南京理工大学泰州科技学院毕业设计(论文)夕卜文资料翻译系 部: 计算机科学与技术系专 业: 计算机科学与技术姓名: 学号: 夕卜文出处: 写)附件川.外文资料翻译译文;2•外文原文。指导教师评语:签名: 附件1:外文资料翻译译文附件2:外文原文ProgressDatabaseDesignGuide1.1WhatIsaDatabase?Adatabaseisacollectionofdatathatyoucansearchthroughinasystematicwaytomaintainandretrieveinformation.puterized.puterizeddatabasesthatyou,refamiliarwithareatelephonebook,,andalibrarycardcatalogsystcm.Toretrieveinformationfromeachofthesedatabases,ordingly:Tolookupafriend,sphonenumber,youthumbthroughthetelephonebookofthetowntheylivein,andsearchfortheirlastname,followedbytheirfirstname.urrenceofthename,youchecktheaddresses,andbyprocessofclimination,youdotermineyourfriend"sphonenumber.Thetelephonebookhasaverysimpleandrestrictedstructure.Youcannot,forinstance,lookupaphonermmberbytheperson"sfirstnameorbytheiraddress.Tocheckthebalanceonacustomer"ount,tolocatethecustomer^sfolderandpulloutthepieceofpaperwiththecurrentbalaneeonit.Thisdatabase,too,hasarestrictedstructure.Youcarmot,forinstanee,lookupacustomersrecordbytheiraddressorthenameoftheirsalesrepresentative.Furthermore,tolookupallcustomerswithanoutstandingbalanceofmorethan$1,000,youmustgothroughallthefoldersindividuallytofindthecustomersthatmeetthiscriteria.Tofindabookinthelibrary,youmustfirstdeterminewhetherthelibraryhasthebookbylookingitupinthecardcatalogs,eitherbytitle,author"sname,orsubjectmatter.YounoteitsdecimalIDnumber,thengototheappropriateshelfand

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