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《数据库系统概念 第五版 (西尔伯沙茨 著) 机械工业出版社 课后答案 preface 课后答案》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、课后答案网，用心为你服务！大学答案---中学答案---考研答案---考试答案最全最多的课后习题参考答案，尽在课后答案网（www.khdaw.com）！Khdaw团队一直秉承用心为大家服务的宗旨，以关注学生的学习生活为出发点，旨在为广大学生朋友的自主学习提供一个分享和交流的平台。爱校园（www.aixiaoyuan.com）课后答案网（www.khdaw.com）淘答案（www.taodaan.com）PrefaceDatabasemanagementhasevolvedfromaspecializedcomputerapplicatio
2、ntoacentralcomponentofamoderncomputingenvironment,and,asaresult,knowl-edgeaboutdatabasesystemshasbecomeanessentialpartofaneducationincom-puterscience.Inthistext,wepresentthefundamentalconceptsofdatabasemanage-ment.Theseconceptsincludeaspectsofdatabasedesign,databaselangu
3、ages,anddatabase-systemimplementation.Thistextisintendedforafirstcourseindatabasesatthejuniororseniorunder-graduate,orfirst-yeargraduate,level.Inadditiontobasicmaterialforafirstcourse,thetextcontainsadvancedmaterialthatcanbeusedforcoursesupplements,orasintroductorymaterialf
4、oranadvancedcourse.Weassumeonlyafamiliaritywithbasicdatastructures,computerorganization,andahigh-levelprogramminglanguagesuchasJava,C,orPascal.Wepresentcon-ceptsasintuitivedescriptions,manyofwhicharebasedonourrunningexampleofabankenterprise.Importanttheoreticalresultsare
5、covered,butformalproofsareomitted.Inplaceofproofs,figuresandexamplesareusedtosuggestwhyaresultistrue.Formaldescriptionsandproofsoftheoreticalresultsmaybefoundinresearchpapersandadvancedtextsthatarereferencedinthebibliographicalnotes.Thefundamentalconceptsandalgorithmscove
6、redinthebookareoftenbasedonthoseusedinexistingcommercialorexperimentaldatabasesystems.Ouraimistopresenttheseconceptsandalgorithmsinageneralsettingthatisnottiedtooneparticulardatabasesystem.DetailsofparticulardatabasesystemsarediscussedinPart9,“CaseStudies.”Inthis,thefifth
7、editionofDatabaseSystemConcepts,wehaveretainedtheoverallstyleoftheprioreditionswhileevolvingthecontentandorganizationtoreflectthechangesthatareoccurringinthewaydatabasesaredesigned,managed,andused.Wehavealsotakenintoaccounttrendsintheteachingofdatabaseconceptsandmadeadapt
8、ationstofacilitatethesetrendswhereappropriate.Beforewedescribethecontentofthebookindetail,wehighlightso
