会员注册 | 登录 | 微信快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > PDF文档下载

SQL与关系理论.pdf

  • 资源星级:
  • 资源大小:3.03MB   全文页数:428页
  • 资源格式: PDF        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

SQL与关系理论.pdf

DownloadatWoweBook.ComSQLandRelationalTheoryHowtoWriteAccurateSQLCodeDownloadatWoweBook.ComOtherresourcesfromOReillyRelatedtitlesTheArtofSQLDatabaseInDepthEssentialSQLAlchemySQLinaNutshelloreilly.comoreilly.comismorethanacompletecatalogofOReillybooks.Youllalsofindlinkstonews,events,articles,weblogs,samplechapters,andcodeexamples.oreillynet.comistheessentialportalfordevelopersinterestedinopenandemergingtechnologies,includingnewplatforms,programminglanguages,andoperatingsystems.ConferencesOReillybringsdiverseinnovatorstogethertonurturetheideasthatsparkrevolutionaryindustries.Wespecializeindocumentingthelatesttoolsandsystems,translatingtheinnovatorsknowledgeintousefulskillsforthoseinthetrenches.Visitconferences.oreilly.comforourupcomingevents.SafariBookshelfsafari.oreilly.comisthepremieronlinereferencelibraryforprogrammersandITprofessionals.Conductsearchesacrossmorethan1,000books.Subscriberscanzeroinonanswerstotimecriticalquestionsinamatterofseconds.ReadthebooksonyourBookshelffromcovertocoverorsimplyfliptothepageyouneed.Tryittodayforfree.DownloadatWoweBook.ComBeijingCambridgeFarnhamKölnSebastopolTaipeiTokyoSQLandRelationalTheoryHowtoWriteAccurateSQLCodeC.J.DateDownloadatWoweBook.ComSQLandRelationalTheoryHowtoWriteAccurateSQLCodebyC.J.DateCopyright©2009ChrisDate.Allrightsreserved.PrintedintheUnitedStatesofAmerica.PublishedbyOReillyMedia,Inc.1005GravensteinHighwayNorth,Sebastopol,CA95472OReillybooksmaybepurchasedforeducational,business,orsalespromotionaluse.Onlineeditionsarealsoavailableformosttitlessafari.oreilly.com.Formoreinformation,contactourcorporate/institutionalsalesdepartment8009989938orcorporateoreilly.com.EditorAndyOramProductionEditorAdamWitwerIndexerC.J.DateCoverDesignerMarkPagliettiInteriorDesignerMarciaFriedmanIllustratorsJessamynReadPrintingHistoryJanuary2009FirstEdition.TheOReillylogoisaregisteredtrademarkofOReillyMedia,Inc.SQLandRelationalTheoryandrelatedtradedressaretrademarksofOReillyMedia,Inc.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthisbook,andOReillyMedia,Inc.wasawareofatrademarkclaim,thedesignationshavebeenprintedincapsorinitialcaps.Whileeveryprecautionhasbeentakeninthepreparationofthisbook,thepublisherandauthorsassumenoresponsibilityforerrorsoromissions,orfordamagesresultingfromtheuseoftheinformationcontainedherein.ISBN9780596523060VDownloadatWoweBook.ComThosewhoareenamoredofpracticewithouttheoryarelikeapilotwhogoesintoashipwithoutrudderorcompassandneverhasanycertaintywhereheisgoing.Practiceshouldalwaysbebaseduponasoundknowledgeoftheory.LeonardodaVinci1452–1519Thetroublewithpeopleisnotthattheydontknowbutthattheyknowsomuchthataintso.JoshBillings1818–1885Languagesdiemathematicalideasdonot.G.H.HardyUnfortunately,thegapbetweentheoryandpracticeisnotaswideintheoryasitisinpractice.AnonymousToallthosewhothinkanexerciselikethisoneisworthwhile,andinparticulartothememoryofLexdeHaan,whoisverymuchmissed.DownloadatWoweBook.ComDownloadatWoweBook.ComviiCONTENTSPREFACExiii1SETTINGTHESCENE1TheRelationalModelIsMuchMisunderstood2SomeRemarksonTerminology3Principles,NotProducts4AReviewoftheOriginalModel5Modelvs.Implementation13PropertiesofRelations17Basevs.DerivedRelations19Relationsvs.Relvars21Valuesvs.Variables23ConcludingRemarks24Exercises252TYPESANDDOMAINS27TypesandRelations27EqualityComparisons28DataValueAtomicity34WhatsaType37Scalarvs.NonscalarTypes40ScalarTypesinSQL42TypeCheckingandCoercioninSQL43CollationsinSQL45RowandTableTypesinSQL47ConcludingRemarks49Exercises503TUPLESANDRELATIONS,ROWSANDTABLES53WhatsaTuple53RowsinSQL57WhatsaRelation60RelationsandTheirBodies61RelationsArenDimensional62RelationalComparisons63TABLE_DUMandTABLE_DEE64TablesinSQL65DownloadatWoweBook.Com

注意事项

本文(SQL与关系理论.pdf)为本站会员(baixue100)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5