关系数据库管理系统外文翻译文献.docx
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关系数据库管理系统外文翻译文献.docx
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关系数据库管理系统外文翻译文献
关系数据库管理系统外文翻译文献
(文档含中英文对照即英文原文和中文翻译)
原文:
Access2000RelationalDatabase
MembersoftheOfficefamily,thepeopleofAccess2000understanding,oftenlimitedinitsinterface,forthedatabasemanagementfunctionisstillattheestablishmenttable,dataentry,UseFormguideReportingWizard,DataAccess2000PageWizardandothersimpleapplications.Infact,thefunctionsoftheAccess2000isapowerfulandbeyondyourimagination.ItisreleasedfromMicrosoftAccess2000functionssincemostcomprehensive,WindowsandtheInternetmorecloselywiththedatabasesoftware,isaverypowerful,andsimple,easy-to-usedatabasemanagementsystem(DBMS)thatthedatabasestorage,processingandmanagementsystem.Access2000relationaldatabasemanagementsystemisMicrosoftOfficePublicautomationsoftwareasanintegralpart.Itcaneffectivelyorganize,manageandsharetheinformationinthedatabase,anddatabaseinformationwiththeWebtogether.ThroughtheInternettosharedatabaseinformationwiththebasicplatform.Withthedevelopmentofinformationtechnology.Informationtechnologyplatformisoftenthechoiceofestablishingorre-establishingapplicationsofthekeyissues,thedatabaseispartoftheneedtomakeachoiceasakeyplatform.
Access2000asarelationaldatabasemanagementsystemsmallandmedium-sizedinformationmanagementsystemidealdevelopmentenvironment,thecurrentdatabaseinthefield,therearemoreandmorepeopleuse.ItisapowerfuldatabasemanagementsystemMISdevelopmenttools.
Thedatabaseisstoredtogetheracollectionofrelevantdata,thedataisstructured.Thedatabaseisadatastorageanddataoperationofthetool.Theroleofthedatabaseistoorganizeandpresentinformation,inshort,thedatabaseisacollectionofinformation.Computerdatabasecanbedividedintotwocategories:
non-relationaldatabase(flat-)andrelationaldatabase(relational).
Relationaldatabasecontainsanumberofdatatables,databasescontainingvariouspartsoftheterminology,likerecords.Relationaldatabasemanagementsystemhasthetechnologicaldominanceofthemainstream,butthistraditionaldatabasemanagementsystemsbyusingtwo-dimensionaldatamodel,andthereareinherentlimitationsandrestrictions.Itdifficulttoadapttotoday'srapidlychangingbusinessneeds,andthedevelopmentofnewtechnologies.
WiththerapidITdevelopment,dataprocessing,notonlyinquantityincreasinglydemanding,butalsothequalityofincreasinglyhighdemand,databasemanagementdatahasbeenafundamentalchange.Thischangetothedatabasetechnologyhasbroughttremendouschallenges,Objectdatabasemanagementisnolongerlimitedtotextdataandothersimpledatatypes.Andthedescriptionandtheneedtopreservealotofcomplexunstructuredmultimediadata,andtherelationshipbetweenthedata.Furthermore,inthewakeofpopularwebsitessurgeinthenumberofvisitstoitsowndatabasestoragemechanism,alargenumberofconcurrentuserstothedemand,storageefficiencyintheuseofspace,anddataintegrityandsecurity,andotheraspectsofhigherdemand.Thesearenottraditionalrelationaldatabase,theuseofasimpletwo-dimensionaltablestructureofthemeet.
Access2000istherelationaldatabasedevelopmenttools,databasepoolinginformationfortheinquiry,Storageandretrieval.Access2000theadvantageliesinitsabilitytousedatamaporcustomwindowstocollectinformation.DataprovidesamapsimilartotheExcelspreadsheet,databasetransparent.Inaddition,theAccess2000allowscreationofcustomstatementstoprintorexporttheinformationinthedatabase.
Access2000alsoprovidesadatarepository.Canusedesktopdatabasefiletoextendthedatabasefileatthenetworkfileserverandothernetworkuserstosharedatabases?
Access2000isarelationaldatabasetools,databasedevelopment,isthemostcommondatabases.Asnotedabove,asanAccess2000databasedevelopmentpossessesmanyadvantages,inadatapacketavailableatthesametimefacilitatethedesktopdatabaseandapowerfulrelationaldatabasefunctions.
InAccess2000,withtheuserdatabaseaccesspermissionsaretwotypes:
Explicitandimplicitpowersauthority.Explicitauthorityisgrantedadirectuseraccountcompetence,whichistheexclusiveuseofuseraccounts,hasnothingtodowithotherusers.Implicitauthorityisdelegatedtheauthoritygroupaccount,theuseraddedtothegroupwasgivenbythegroup'smandate.Ifauserwiththesametimethesetwopowers,therightsetofusersecuritydatabaseforavisit,thenHehadsuchauthorityistheintersectionofthetwopowers.TheAccess20002000database,thegroupofusers’accesstothedatabaseandtheauthoritysetupwork,completedonlythroughtheadministrator.Setuptheauthorityinclude:
"Open/Run",readdesign,designmodifications,management,readdata,updatedatainsertionanddeletionofdata.
Relationaldatabasemanagementsysteminherentlimitationsinthefollowingthreeaspects:
Relationaldatabaseusedinthetwo-dimensionaltabledatamodel,cannoteffectivelyhandlethemajorityofbusinessapplications,Typicalofmultidimensionaldata.Itsinevitableresultisthatincomplexways,theinteractionofthedramaticincreaseinthenumberoftables,notverygoodbutalsotoproviderealisticsimulationofthedatamodel.
Relationaldatabaseastheyusemoredatamodel,whichmightleadtoamassivestoragespaceandwastingalotofincrease,andcausethesystemtorespondtothedecliningperformance.Furthermore,thedatainreality,therearemanytypesofrelationaldatabaseisnotwelladdressed.
Staticapplicationssuchasreportgeneration,andthedesignoftherelationaldatabasemanagementsystemafternoresponseandefficientbusinessprocessingfortheoptimizationprocess.Theresultisoftensomerelationaldatabaseproducts,intheGUIandWebServicesprocessing,notachievedthedesiredresults.Unlessadditionalhardwareinvestment,butitdoesnotresolvethefundamentalproblem.
Relationswiththetwo-dimensionaldatabasetabledatamodelcandealwiththemajorityofbusinessapplicationofatypicalmulti-dimensionaldata,buttheresultsareoftentheestablishmentanduseofalargeamountofdataforms,itisdifficulttoestablishasimulationofreal-worlddatamodel.Andtheneedfordataoutputstatementswhenthey,inturn,wouldhavedispersedthelargenumberoftwo-dimensionaldatatables.Reuseindexingtechnologylinkingthetableinordertofindallthenecessarydata,this,inturn,isboundtoaffecttheuseoftheresponsespeed.Databasevariousdatabasesiscurrentlythemostimportantandthemostpopulardatabase.
Relationaldatabasesystemtosupporttherelationalmodelofdatabasesystems,relationshipsbetweendatamodelstructure,relationsoperationandintegrityconstraintsetiscomposedofthreeparts.
OfficeAccess2000istheChineseversionofoneofthecomponents.Access2000tothepreviousversion,theAccess2000isnotonlyamorefriendlyinterface,buttheirfunctionshavealsobeenstrengthened,especiallynetworkfunctionwasimproved,InternetAccess2000sothatitmorecloselyconnected.
Access2000isasmallandmedium-sizeddatabasemanagementsystem,easytouse,powerful,andotherdatabaseshaveagoodinterface.
Access2000throughpowerfultool,userscanfacilitatetheuseandmanagementofdatabases,suchasthecreationandeditingofdatatables,designandtheuseofvarioustoolsinquiriesqueryoperation,designandtheuseofwindows,productionandprintingstatements,thedesignanduseofAcer,thedesignanduseofsuchWebpages.MayalsobeusedinVisualBasic6.0A(VisualBasic6.0forApplication)AdvancedApplicationDevelopmentprocedures.
Access2000isacompletedatabaseapplicationdevelopmenttool,theusercandesign,modify,Viewarecordofthebasicdatatable;inthetabledataforvariousscreenandqueryoperation;designanduseofWindowtoachievedataandoperations;Datatablescandesignvariousprintstatements;designanduseofAcer,aseriesoftablesforspecificoperations.
Access2000withastrongoperationalguide,andtoprovideuserswitharichdatabasetablebasictemplate.Usersonlyneedasimpledatabaseoperationscanbeestablishedbyusingthebasicform,Formandstatements.
InAccess2000,canbeset,toalterthebasiccorrelationbetweenthetables,thusachievinganumberofrelatedtablesintherelationshipbetweentheinquiries.Access2000-Theoperationcanachieveautomation,theoperatorismoresimpleandefficient.Access2000toenhancethenetworkfunction,userscancompletetheeaseofwebpublication.
Access2000cannotonlydealwiththeirowndatabasefiles.Couldalsoaddresssomeotherdatabasemanagementsoftwaresystemestablishedbythedatabasefiles,theabilitytodistinguishBase.FoxBASE,FoxPro,Paradox,databaseformats,suchasdocuments,andsupporttheopendatabaseconnectivitystandard(ODBC)SQL.Access2000withworkstations,serversordatabasesonthemainframedatabaseinterconnectedandcanbeusedforbuildingclient/serverapplicationsoftheworkstation.Andotherrelationaldatabasemanagementsystems,Access2000havethefollowingadvantages:
Storagesingledocument.
Access2000ofadatabasefilecontainsthedatabaseofalldatatables,query,windows,allstatements,andotherdatamanageable.
Supportforlongfilenamesandfilenamecanbeaddedtotheblank,documentseasilycomprehensiblesearch.
Powerfulnetworkfunctioncanbetransmittedthroughthenetworkdata.
Easytouse,youdonotneedtounderstandtheprogramminglanguagecaneasilydesignanddevelopmentofdatabaseapplications.
Canhandleavarietyofdataandinformation,s
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