DatabaseSystemConcepts——数据库系统概念第六版(英文版)作者:AbrahamSilberschatz(YaleUniversity)HenryF.Korth(LehighUniversity)S.Sudarshan(IndianInstituteofTechnology,Bombay)本书目录:Chapter1Introduction1.1Database-SystemApplications11.2PurposeofDatabaseSystems31.3ViewofData61.4DatabaseLanguages91.5RelationalDatabases121.6DatabaseDesign151.7DataStorageandQuerying201.8TransactionManagement221.9DatabaseArchitecture231.10DataMiningandInformationRetrieval251.11SpecialtyDatabases261.12DatabaseUsersandAdministrators271.13HistoryofDatabaseSystems291.14Summary31Exercises33BibliographicalNotes35Chapter2IntroductiontotheRelationalModel2.1StructureofRelationalDatabases392.2DatabaseSchema422.3Keys452.4SchemaDiagrams462.5RelationalQueryLanguages472.6RelationalOperations482.7Summary52Exercises53BibliographicalNotes55Chapter3IntroductiontoSQL3.1OverviewoftheSQLQueryLanguage573.2SQLDataDefinition583.3BasicStructureofSQLQueries633.4AdditionalBasicOperations743.5SetOperations793.6NullValues833.7AggregateFunctions843.8NestedSubqueries903.9ModificationoftheDatabase983.10Summary104Exercises105BibliographicalNotes112Chapter4IntermediateSQL4.1JoinExpressions1134.2Views1204.3Transactions1274.4IntegrityConstraints1284.5SQLDataTypesandSchemas1364.6Authorization1434.7Summary150Exercises152BibliographicalNotes156Chapter5AdvancedSQL5.1AccessingSQLFromaProgrammingLanguage1575.2FunctionsandProcedures1735.3Triggers1805.4RecursiveQueries1875.5AdvancedAggregationFeatures1925.6OLAP1975.7Summary209Exercises211BibliographicalNotes216Chapter6FormalRelationalQueryLanguages6.1TheRelationalAlgebra2176.2TheTupleRelationalCalculus2396.3TheDomainRelationalCalculus2456.4Summary248Exercises249BibliographicalNotes254Chapter7Datab
2024/5/17 10:55:55 10.51MB Database Concepts PDF 英文版
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安卓界面组件移动软件实现工具,实现对不同组件的不同移动-androidtoolformovingviews
2024/5/14 16:18:04 97KB ViewHelpe nineoldandro
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有些asp.net中使用viewstate,那里的内容是base64编码,此工具是把viewstate内容给解析成原来内容,里面包括1.0,1.1,2.0三种版本的工具
2024/5/11 14:55:45 24KB asp.net viewstate decode
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OverviewThisOPCUAreferenceimplementationistargetingthe.NETStandardLibrary..NetStandardallowsdevelopingappsthatrunonallcommonplatformsavailabletoday,includingLinux,iOS,Android(viaXamarin)andWindows7/8/8.1/10(includingembedded/IoTeditions)withoutrequiringplatform-specificmodifications.Furthermore,cloudapplicationsandservices(suchasASP.Net,DNX,AzureWebsites,AzureWebjobs,AzureNanoServerandAzureServiceFabric)arealsosupported.Featuresincluded1. FullyportedCoreUAstackandSDK(Client,Server,Configuration&Sampleassemblies)2. SampleServersandClients,includingallrequiredcontrols,for.Net4.6,.NetCoreandUWP.3. X.509certificatesupportforclientandserverauthentication4. Anonymous,username,X.509certificate(experimental)andJWT(experimental)userauthentication5. UA-TCP&HTTPStransports(clientandserver)6. Foldercertificate-storesupport7. Sessions(includingUIsupportinthesamples)8. Subscriptions(includingUIsupportinthesamples)GettingStartedAllthetoolsyouneedfor.NetStandardcomewiththe.NetCoretools.Seehereforwhatyouneed.HowtocreateselfsignedcertificatesforthesampleapplicationsOnWindows1. Openacommandpromptintherootfolderofyourrepository2. RunthescriptCreateAllCerts.cmdintherootfolderofyourrepositorytocreatethecertificatesforallsampleapplications.3. Alternatively,youcanrunthescriptCreateCert.cmdineachsampleprojectfoldertocreatenewselfsignedcertificatesfortheapplication.4. TheselfsignedcertificatesarestoredinOPCFoundation/CertificateStores/MachineDefaultineachapplicationprojectfolderOnLinux1. Openacommandprompt2. Navigatetotheprojectfolderofthesampleapp,e.g.SampleApplications/Samples/NetCoreConsoleClient3. Runthescript./createcert.shtocreatethecertificatesforthesampleapplications.4. TheselfsignedcertificatesarestoredinOPCFoundati
2024/5/10 14:27:21 6.71MB OPC UA 客户端 服务器
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ReviewFromthereviews:"Thebookisdevotedtopublickeycryptography,whoseprincipalgoalistoallowtwoormorepeopletoexchangeconfidentialinformation….Thematerialisverywellorganized,anditisself-contained:noprerequisitesinhighermathematicsareneeded.Infact,everythingisexplainedandcarefullycovered….thereisabundanceofexamplesandproposedexercisesattheendofeachchapter.…Thisbookisidealasatextbookforacourseaimedatundergraduatemathematicsorcomputersciencestudents."(FabioMainardi,TheMathematicalAssociationofAmerica,October,2008)"Thisbookfocusesonpublickeycryptography….Hoffstein,Pipher,andSilverman…provideathoroughtreatmentofthetopicswhilekeepingthematerialaccessible.…Thebookusesexamplesthroughoutthetexttoillustratethetheorems,andprovidesalargenumberofexercises….Thevolumeincludesanicebibliography.…SummingUp:Highlyrecommended.Upper-divisionundergraduatethroughprofessionalcollections."(C.Bauer,Choice,Vol.46(7),March,2009)"Formostundergraduatestudentsinmathematicsorcomputerscience(CS),mathematicalcryptographyisachallengingsubject.…itiswritteninawaythatmakesyouwanttokeepreading.…Theauthorsofficiallytargetedthebookforadvancedundergraduateorbeginninggraduatestudents.Ibelievethatthisaudienceisappropriate.…itcouldevenbeusedwithstudentswhoarejustlearninghowtoexecuterigorousmathematicalproofs.…Istronglybelievethatitfindstherighttonefortoday’sstudents…."(BurkhardEnglert,ACMComputingReviews,March,2009)"Theexercisesandtextwouldmakeanexcellentcourseforundergraduateindependentstudy.…Thisisanexcellentbook.Hoffstein,PipherandSilvermanhavewrittenasgoodabookasispossibletoexplainpublickeycryptography.…Thisbookwouldprobablybebestsuitedforagraduatecoursethatfocusedonpublickeycryptography,forunder
2024/5/2 18:28:21 7.38MB 密码学
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casccurl-v-H“X-CasC令牌:93eb135e-dd46-43cf-a12a-461b97007364”“”-k导出TOKEN=“admin:114bc396134b9502c2084da93a21e1e3ff”curl-v“https://${TOKEN}@cb-core.caternberg.eu/master3/configuration-as-code/checNewSource?newSource=''“'”curl-v-obeer-1.1.hpi
2024/4/30 6:44:43 20KB Shell
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Minix原来是荷兰阿姆斯特丹的Vrije大学计算机科学系的AndrewS.Tanenbaum教授所发展的一个类Unix操作系统。
全部的程序码共约12,000行,并置于他的著作OperatingSystems:DesignandImplementation(ISBN0-13-637331-3)的附录里作为范例。
Minix的系统要求在当时来说非常简单,只要三片磁片就可以启动。
  全套Minix除了起动的部份以汇编语言编写以外,其他大部份都是纯粹用C语言编写。
分为:内核、内存管理及档案管理三部份。
  Minix原始是设计给1980年代到1990年代的IBMPC和IBMPC/AT兼容电脑上执行。
1.5版也有移植到已Motorola68000系列CPU为基础的电脑上(如AtariST,Amiga,和早期的AppleMacintosh)和以SPARC为基础的机器(如升阳sun公司的工作站)。
2.0版则只有x86架构的版本。
2024/4/27 8:13:19 6.44MB minix(1.0-2.0) linux unix minix1.0源码
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s3-streamlogger可写流对象,该对象上载到s3个对象,并定期轮换为新的对象名称。
另请参见,以用于尾码s3-streamlogger生成的日志文件的脚本。
安装npminstall--saves3-streamlogger基本用法varS3StreamLogger=require('s3-streamlogger').S3StreamLogger;vars3stream=newS3StreamLogger({bucket:"mys3bucket",access_key_id:"...",secret_access_key:"..."});s3stream.write("helloS3");与Winston一起使用:登录到S3npminstall--savewinstonnpminstall--saves3-streamloggervarwinston=require('winston')
2024/4/25 1:11:02 27KB nodejs javascript aws logging
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实现简单网页+java后台+数据库对标题和内容进行增删改查
2024/4/23 1:24:27 unknown 前端, java,数据库
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新闻管理系统(jsp+javabean+mysql)1.解压缩(如解压缩到D: omcat4webappsROOTews目录下);2.进入classes目录,打开news.txt。
修改mysql.url(数据库联接地址及数据库名),mysql.user(用户名),mysql.password(密码),ilog(数据库联接池日志文件,请注意路径分隔符为“\”,在linux中是“/”);
3.建数据库,并将database目录下news.sql导入;
news.sql中37行中用户可修改你想要的密码,但用户名admin不能更改,否则不能实现超级管理员的功能4.运行管理文件-_-admin/index.jsp对系统进行一些基本设置(首先添加栏目)(如:http://localhost:8080/news/admin/index.jsp);5.OK!欢迎使用(如:http://localhost:8080/news/index.jsp)
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在日常工作中,钉钉打卡成了我生活中不可或缺的一部分。然而,有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚,我总是得牢记打开钉钉应用,点击"工作台",再找到"考勤打卡"进行签到。有时候因为工作忙碌,会忘记打卡,导致考勤异常,影响当月的工作评价。而且,由于我使用的是苹果手机,有时候系统更新后,钉钉的某些功能会出现异常,使得打卡变得更加麻烦。 另外,我的家人使用的是安卓手机,他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说,每次打卡都是一次挑战。他们总是担心自己会操作失误,导致打卡失败。 为了解决这些烦恼,我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习,我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。
2024-04-09 15:03 15KB 钉钉 钉钉打卡