List of Top Websites on Oracle
Top 250 Websites on ORACLE
Download The Top 250 Websites in Excel
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Computer Based Test (CBT) development and delivery :: Pearson VUE
Pearson VUE offers innovative computer based testing solutions through secure, electronic test delivery. Pearson VUE provides licensure and certification exams for Microsoft, Cisco, CompTIA, Oracle, HP, GMAC, NCLEX, FINRA, ASCP, DANB and many more.
testing, centers, test, certification, pearson, authorized, electronic, technology, information, virtual, university, center, enterprises, licensure, management, data, delivery, development, exams, professional, services
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TechOnTheNet - Online tutorials for Excel, SQL, Oracle, PLSQL and more!
Your trusted resource for learning new technologies. We''ve been providing tutorials, references, and step-by-step instructions since 2003. TechOnTheNet.com is a great place to learn a new technology, or find a quick reference.
microsoft, language, ascii, word, excel, access, cascading, tutorial, markup, style, chart, hypertext, values, table, programming, sheets, mariadb, totn, tech, oracle, plsql, postgresql, sqlite, techonthenet, mysql, server, html
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Javarevisited: Blog about Java Programming Tutorials, Examples, Design Patterns, Interview Questions and Answers, FIX Protocol, Tibco RV messaging, UNIX and Linux Commands, XML, SQL, MySQL, Oracle, jQuery, JavaScript,HTML, Multithreading, Collection, Error and Exception, Debugging, Best Practices and Practical tips from my experience.
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Oracle Consulting, Oracle Support and Oracle Training by BC Oracle Consulting
Burleson Oracle consulting, Oracle training and Oracle support
oracle, architecture, support, consulting, classes, warehousing, data, tuning, consultant, consultants, education, contracting, training
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Dyn DNS and Web Application Security are Critical for Infrastructure Security | Oracle Dyn
Web applications are the new standard for businesses. Ensure that your business is safe from cyber attacks, malicious bots, and DDoS attacks. Learn how Oracle Dyn can help achieve the highest level of security for your web applications and provide world class DNS for your website.
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IT鏁欑▼缃--鍥藉唴棣栧IT璧勬簮浜ゆ槗骞冲彴
IT鏁欑▼缃--鍥藉唴棣栧IT璧勬簮浜ゆ槗骞冲彴锛涗笓闂ㄤ负澶у鎻愪緵java锛岀Щ鍔ㄥ紑鍙戯紝澶ф暟鎹紝浜戣绠楋紝鍖哄潡閾撅紝c涓巆++锛宲hp锛宯et锛孭ython锛屼汉宸ユ櫤鑳斤紝鏄撹瑷锛岃蒋浠舵祴璇曪紝鏁版嵁搴擄紝鎿嶄綔绯荤粺锛屽墠绔紝缇庡伐锛宻eo锛岀綉璧氾紝鏂板獟浣撹繍钀ワ紝鐢靛晢杩愯惀锛岀綉缁滆惀閿锛屽祵鍏ュ紡锛屾父鎴忓紑鍙戯紝ui璁捐锛岃繍缁达紝go璇█锛屾暟鎹粨鏋勶紝姹囩紪璇█锛岄粦瀹紝娓告垙杈呭姪锛岀墿鑱旂綉锛岀數鑴戝姙鍏紝瀹ゅ唴璁捐锛屽澶栬璁★紝鏈烘璁捐锛岀瓑绾ц冭瘯锛岀綉缁滃伐绋嬪笀锛屼骇鍝佽繍钀ワ紝褰遍煶澶勭悊锛屽仴搴峰吇鐢燂紝璐㈠姟浼氳锛岀害浼氭挬濡瑰叾浠栫瓑瑙嗛鏁欑▼锛屾枃妗ｈ祫鏂欙紝杞欢宸ュ叿鍜岀▼搴忔簮鐮併
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CCNA/CCNP/LinuC(LPIC)/HTML5/OSS-DB/銈儵銈儷銉炪偣銈裤兗/IT銉戙偣銉濄兗銉/ITIL銉曘偂銉炽儑銉笺偡銉с兂绶忓悎瀛︾繏銈点偆銉
CCNA/CCNP銆丩inuC锛圠PIC锛夈丠TML5銆丱SS-DB銆両T銉戙偣銉濄兗銉堛併偑銉┿偗銉優銈广偪銉笺両TIL銇│楱撳悎鏍笺倰鐩寚銇欎汉銈掑繙鎻淬仚銈嬪缈掋偟銈ゃ儓锛堢櫥閷层儲銉笺偠20涓囦汉锛夈仹銇欍 銉︺兗銈剁櫥閷层倰銇欍倠銇ㄣ佺劇鏂欍仹CCNA WEB鍟忛闆嗭紙600鍟忎互涓婏級銈凩PIC Lv1鍟忛闆(500鍟忎互涓/LPI瑾嶅畾鏁欐潗)銆丱racle Master Bronze SQL鍩虹(绱400鍟)銆両T銉戙偣銉濄兗銉堥亷鍘诲晱锛600鍟忥級銆佸缈掓棩瑷樸佸姪銇戝悎銇勩儠銈┿兗銉┿儬銇仼銈掑埄鐢ㄣ仹銇嶃倠銈堛亞銇仾銈娿伨銇欍
ping, itil, cisco, linuc, icnd2, icnd1, ccnp, ccent, lpic, html5, master, oracle, linux, ccna
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The Geek Stuff
Provides Instruction Guides, How-Tos, Troubleshooting Tips and Tricks on Linux, Database, Hardware, Security, Web and Open Source for both Newbies and Geeks -
ramesh, administrator, system, manager, geek, natarajan, stuff, oracle, database, unix, mysql, security, hardware, linux
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Measureup Store
MeasureUp鈥檚 mission is to be the leading provider of high-quality assessments and practice tests to the individual, training and publishing, education and corporate markets.
practice, test, microsoft, comptia, office, oracle, cisco, wmware, specialist, labs, scns, scna, scnp, toolkit, certification, ccna, institute, management, project, official, mcsa, mcse, ccdp, ccnp, mcsd
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閰峰３ 鈥 CoolShell.cn
浜彈缂栫▼鍜屾妧鏈墍甯︽潵鐨勫揩涔 鈥
oracle, mysql, perl, linux, javascript, jquery, linus, torvalds, programmer, programming, unix, windows, ubuntu, language, python, ruby, java, android, bash, book, algorithm, ajax, code, review, game, google, html, erlang, ebook, coding, database, debug
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Online Tutorials and free Training Materials | STechies
Free online beginners and advanced learning text tutorials, training materials, forums, interview questions and answer for courses like SAP, SQL, Android, Hadoop, JAVA, PHP, Oracle, Python, Scala, Unix, Photoshop, MySQL, Lightroom, SEO and etc - STechies
free, tutorials, scala, unix, python, photoshop, oracle, lightroom, stechies, java, mysql, materials, beginners, training, courses, online, interview, android, learn, forums, hadoop
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Interactive Courses & Labs -uCertify
uCertify offers courses, test prep, simulator, and virtual labs to prepare for Microsoft, Oracle, Cisco, CompTIA, CIW, Adobe, PMI, ISC2, Linux, and many more certification exams. These prep-kits come with the comprehensive study guide and interactive activities that offer 100% pass guarantee.
interactive, certification, courses, labs, exam, test, practice, mcts, ccna, mcitp, mcse
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ORACLE-BASE - Oracle DBA and development articles, scripts, HOWTOs and forums (8i, 9i, 10g, 11g, 12c, 13c, 18c, 19c)
ORACLE-BASE - Oracle DBA and development articles, scripts, HOWTOs and forums (8i, 9i, 10g, 11g, 12c, 13c, 18c, 19c)
scripts, articles, development, howto, certification, forums, oracle
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Web Spell Checker for Java, IIS ASP .NET, Ajax, JavaScript Forms, Open Source & Royalty Free Spell Check Licenses
JSpell - HTML Spell Checker and Java Spell Checker, compatible with JavaScript, open source software, Ajax, ASP .NET, JSP, CGI, Java Applets and Servlets. Add spell checking capability to web based HTML Forms, contentEditable IFrames, Java programs and more. View our online spell check demos. Source code is available.
spell, checker, speller, spellchecking, spellcheckers, open, free, royalty, source, spellcheck, iframe, forms, check, javascript, ajax, java, html, oracle, jspell
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|| BIZMANDU ||
Online Business News
phone, metro, nepal, gold, auto, nepse, windows, news, politics, online, rana, janakpur, libor, finnma, vodafone, chennai, social, pension, realstate, jagga, nepalbank, defult, development, hydro, chhath, html, upper, dishhome, dollar, standard, mastercard, chartered, credit, visa, card, messanger, yahoo, blackberry, symbian, skype
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寮犵敓鑽
linux, json, angularjs, nginx, flash, node, shell, oracle, javascript, jquery, python, android, java, mysql, zabbix, mariadb, cloudstack, vista, access, scala, virtualbox, dedecms, xenserver, postgresql, web2, photoshop, fireworks, sqlite, windows2008, prototype, erlang, autoit, dreamweaver, coldfusion, seraphzone, cookie, extjs, openvz, qemu, seajs
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棣栭〉 - 鏁欑▼缃
鏁欑▼缃戞槸鎻愪緵璁＄畻鏈虹浉鍏冲浘鏂囥佽棰戞暀绋嬩互鍙婂涔犱氦娴佸钩鍙扮殑缁煎悎鎬х綉绔欙紝鐗瑰埆鏄痯hotoshop銆乮llustrator銆丆orelDRAW绛夊钩闈㈣璁′笓涓氾紝3dsMAX銆丄utoCAD绛変笁缁磋璁′笓涓氾紝flash锛宖ireworks锛宒reamweaver锛宧tml銆乧ss鍜宩avascript绛墂eb鍓嶇锛宲hp銆.net銆乯ava銆乸ython銆乵ysql銆oracle銆乻qlserver绛墂eb缂栫▼寮鍙戠瓑绛夋暀绋嬪拰浜ゆ祦瀛︿範璁哄潧銆傝繖閲屾湁绮惧僵鐨勫唴瀹癸紝鑹ソ鐨勬皵姘涘拰浼楀鑹笀鐩婂弸銆傞椤 , 鏁欑▼缃
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棣栭爜-钘嶈壊灏忚垨 BlueShop
鍙扮仯鏈澶х▼寮忚ō瑷堢ぞ缇ょ恫绔欙紝鑱氶泦瓒呴亷34钀悕闁嬬櫦鑰呮渻鍝★紝鍏卞悓瑷庤珫鏈鏂扮▼寮忚獮瑷鎶琛擄紝鍒嗕韩瓒呴亷2600鏀瘎渚嬬▼寮忎緵澶у鍏嶈不涓嬭級銆
server, linq, web3, web2, silverlight, script, java, services, android, json, jquery, appup, blog, linux, access, oracle, unix, studio, visual, flash, javascript, vbscript, ruby
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涔﹀奖鍗氬 | 涓涓枃鑹虹▼搴忓憳鐨勬妧鏈崥瀹
鏈鏂版棩蹇
ztree, xlwt, zinnia, wysiwyg, wordpress, syncdb, springside, spinner, sklearn, solr, tinymce, toolbar, visualization, virtualenv, ubuntu, toolbelt, topcoder, sitemap, duoshuo, echarts, eclipse, django, discuz, debug, fail2ban, fibonacci, gperf, grants, heroku, google, glyphicons, framework, dbhandler, d3js, blog, bootstrap, carousel, amcharts, alexa, channel
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Planet Source Code home page
Need programming help? We''ve got your covered. 14.2 million lines of source code examples to build from.4.2 thousand tutorials and articles to learn from.Discussion boards, coding contests with prizes, and 2 thousand open programming jobs.
server, vbscript, database, winapi, bulletin, programming, code, visual, active, function, basic, pages, game, dcom, directx, downloads, microsoft, functions, msaccess, odbc, long, single, integer, boolean, byte, double, currency, variant, free, string, object, date, type, data, subroutines, certify, front, dbgrid, decompiling, decompiler
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涓夐歩t瀛﹂櫌 - SANTONGIT.COM - 鍥藉唴棰嗗厛鐨処T璧勬簮鍒嗕韩璁哄潧
鍥藉唴棰嗗厛鐨刬t绫昏祫婧愬垎浜鍧涳紝鍒嗕韩it瀛︿範瑙嗛鏁欑▼鍙婅祫鏂欐枃妗ｇ瓑锛岃鍧涙兜鐩栧ぇ閮ㄥ垎it瀛︿範鏂瑰悜锛屽寘鍚濈璁よ瘉鍙婂崕涓鸿璇佺瓑缃戠粶鎶鏈, Oracle鍜孧ySQL涓绘祦鏁版嵁搴撴妧鏈, 鎵鏈夎蒋浠跺紑鍙戝拰缃戦〉寮鍙戞妧鏈, Linux鎶鏈, Windows Server鏈嶅姟鍣, Vmware鍜孋itrix铏氭嫙鍖栨妧鏈紝浠ュ強hadoop鍜孫penstack浜戣绠楀拰澶ф暟鎹妧鏈紝鎴戜滑鑷村姏浜庡垎浜玦t绫昏祫婧愶紝鍒嗙被榻愬叏甯姪澶у瀛﹀埌鏈鏂扮殑it鎶鏈紒
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Best Software Training Institute - Best Online Training Institute Hyderabad, India
NareshIT is the Best Software Training Institute for Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silverlight, Linq, SQL Server, Selenium, Android, iPhone in Hyderabad and Chennai, India which provides online and classroom training classes.
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Home | SYS-CON MEDIA
SYS-CON Media, NJ, a leading technology and computing media company on breaking news in the Cloud.
open, source, eclipse, coldfusion, apache, ajax, flex, perl, powerbuilder, oracle, iphone, video, sddc, data, devops, cloud, things, internet, containers, microservices, mobile, security, stack, linux, webrtc, java, enterprise
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Navicat GUI | DB Admin Tool for MySQL, PostgreSQL, MongoDB, MariaDB, SQL Server, Oracle & SQLite client
Powerful database management & design tool for Win, macOS & Linux. With intuitive GUI, user manages MySQL, PostgreSQL, MongoDB, MariaDB, SQL Server, Oracle & SQLite DB easily.
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Customer Collaboration Software - Expertflow
Expertflow develop software for contact centers. We provide CTI integration with Oracle Siebel or Service Cloud CX, Microsoft Dynamics and SAP || AI / Chat Bot || Easy administration of contact centers || Survey Management || Campaign Management || Finesse Gadgets || Reporting || SMS || Retail Queuing and more..
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TekSlate INC Is A E-Learning Marketplace Connecting Students And Trainers Globally
TekSlate INC is the Industry leader in providing online training to various courses in IT. We specialize in Hadoop, RPA, Selenium, DevOps, Salesforce, Informatica, Tableau, ServiceNow, SQL Server, Oracle and IBM Technologies
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Besant Technologies | No.1 Software Training in Chennai & Bangalore
Besant Technologies Specializes in Offering Real-time Experience IT training on AWS, Selenium, Hadoop, Java, DevOps, Data Science, Python, Digital Marketing, RPA, Oracle, Android, SAS, Microsoft, DotNet, AngularJs, Block Chain, Full Stack Developer, Apache Spark, Tableau, IOT, PHP, R programming, at Affordable Cost.
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Jitendra Zaa - Salesforce MVP and Sr. Technical Architect
Website of Jitendra Zaa, Salesforce MVP and Architect
salesforce, puzzle, servlet, snmp, visualforce, technology, tips, tech, server, ssis, struts, oracle, force, heroku, configuration, hibernate, html, microsoft, node, linux, lightning, java, apex
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缂栫▼瀛︿範 - 缂栫▼鏂版墜瀛︿範锛岄珮鏁堢紪绋嬪埄鍣紒
缂栫▼瀛︿範(www.23673.com)鎻愪緵浜嗙紪绋嬬殑鍩虹鎶鏈暀绋, 浠嬬粛浜咹TML銆丆SS銆丣avascript銆丳ython锛孞ava锛孯uby锛孋锛孭HP , MySQL绛夊悇绉嶇紪绋嬭瑷鐨勫熀纭鐭ヨ瘑銆 鍚屾椂鏈珯涓篃鎻愪緵浜嗗ぇ閲忕殑鍦ㄧ嚎瀹炰緥锛岄氳繃瀹炰緥锛屾偍鍙互鏇村ソ鐨勫涔犵紪绋嬨
django, flask, angularjs, vuejs, mariadb, memcached, oracle, mangodb, redis, gulp, hadoop, spark, linux, grunt, node, mysql, bootstrap, bootstrap4, python, python3, javascript, css3, codingdict, html, java, structs2, hibernate, spring, servlet, jdbc, jquery
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Database Journal – Daily Database Management & Administration News and Tutorials
Discover Database Journal for all of your database professional needs. Offers daily database news, articles, and tutorials for major databases including Oracle, SQL Server, DB2, and MS Access.
database, server, access, oracle, programming, journal, management, program, administration, administrator
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Solved Aptitude Questions and Answers | interview questions Online mock test
Aptitude Questions with answers | Solved interview Question papers | Online aptitude test Questions & solutions | Competitive Exams aptitude Questions & puzzles such as bank exam Railway Exam & other Government Exam Question papers
questions, aptitude, answers, solved, problems, online, interview, calculation, distance, verbal, important, problem, placement, download, area, test, exam, papers, infosys, solution, wipro, examples, bank, ability, check, formula, permutation, question, formulas, oracle, decimal, programming, java, railway, time, trains, panel, arithmetic, profit, simple
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codesd.com
xcode, multithreading, algorithm, windows, excel, django, bash, swift, node, html5, list, spring, linq, forms, winforms, performance, oracle, database, codes, eclipse, perl, mysql, arrays, html, python, javascript, jquery, android, iphone, angularjs, ajax, linux, java, string, json, regex, ruby
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DataScience.com | Enterprise Data Science Platform Provider
Oracle''s DataScience.com offers a powerful enterprise data science platform that enables data science teams to organize work, access data and computing resources, and build, train, deploy, and manage models in the Oracle Cloud. Learn more about Oracle''s Data Science Cloud Service.
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Interview Questions Open Database - GeekInterview.com
GeekInterview.com is an Open Database where you can share Interview questions from your interviews and get answers from experts.
questions, interview, mainframe, sqlserver, networking, software, warehousing, data, testing, mysql, microsoft, placement, tech, papers, certification, j2ee, java, practice, oracle
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Informatica, Oracle, Netezza, Unix, Hadoop Tutorials and Examples
A data warehouse blog contains examples, interview questions and tutorials on Sql, Oracle Plsql, Unix Commands, Linux Commands, Informatica and Netezza.
informatica, linux, questions, interview, unix, tutorials, command, examples, commands, tutorial, oracle, transformations
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Employee Referral Software | RolePoint Talent Acquisition Technology
Find out how our talent acquisition software will help you to hire better, including employee referrals, internal mobility and optimized apply technology.
software, taleo, talent, acquisition, employee, apply, technology, referral, edition, business, icims, kenexa, refer, home, page, peoplefluent, enterprise, application, avature, oracle, successfactors, bullhorn, greenhouse, site, tracking, system, smartrecruiters, middleware, angelpad, francisco, angel, saas, referrals, rolepoint, recruitment, london, integration, careers, mobility, internal
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IT Industrial Training, Java, .Net, Php, Oracle, Sas, Training Institutes In Delhi, Noida, Ghaziabad, Gurgaon, Faridabad, Greater Noida.
Industrial Training:DUCAT offers best IT training like Java .Net PHP Oracle program with live project by industry expert In Noida, Ghaziabad, Gurgaon, Faridabad, Greater Noida.
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Cours Gratuits pdf PDF362 | Exercicescours.com
Top Cours Gratuits pdf
gratuit, cours, windows, 2007, outlook, gestion, 2010, ssiap, revit, word, photoshop, oracle, office, telecharger, informatique, vsat, basic, visual, urbanisme, webdesign, unix, xhtml, economie, java, telechargement, livre, windev, universitaire, financiere, webmaster, sketchup, physique, nucleaire, quarkxpress, operationnelle, recherche, controle, maintenance, excel, ressources
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PSOUG.org - Oracle PL/SQL Database Code Library and Resources | Examples | Syntax | DBMS Packages | PL/SQL | SQL |
Oracle PL/SQL examples, syntax, DBMS packages, string, timestamp, substring, PHP code, and Javascript Code Reference Library (formerly known as Morgan''s Library)
oracle, primary, date, select, analyze, alter, constraint, oratech, code, mysql, library, snippets, oracel, javascript
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Technical, Professional and Vocational Training Courses with Certification @ Multisoft Systems
Enroll for the professional and certification courses delivered through project training. Online courses and e-learning helps the candidates to learn technical training on their own.
training, project, online, courses, industrial, professional, noida, months, certification, technical, vocational, management, practice, hacking, rhcsa, ethical, itil, certified, smart, plant, testing, admin, automation, autocad, weeks, delhi, live, camp, boot, corporate, classroom, campus, data, oracle, database, python, development, hadoop, android, salesforce
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Computer Certifications - Free IT Career Certifications Training, Study Guides and Practice Exams by Certiology
We provide free IT Certification practice tests, study guides and networking tutorials mainly focused on Microsoft, Cisco, CWNP, Citrix, Oracle, CompTIA, Linux and many other Computer Certifications.
certification, certifications, comptia, linux, microsoft, computer, cisco, tech, certs, citrix, cwnp
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Cursos de Java, PHP, ORACLE, SQL, Visual Basic, .NET, Dreamweaver, Flash, Photoshop, Illustrator, Diseño Web, Programacion
Centro de Capacitacón en las principales tecnologías de la Informacón. Desde 2006 trabajamos para crear oportunidades de progreso transformando la vida profesional de las personas. Contamos con más de 250 cursos en Tecnología en todos los niveles para acompañar a todos en las distintas etapas de su formacón.
server, illustrator, photoshop, seguridad, digital, marketing, android, basic, visual, linux, windows, oracle, java
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Planet Source Code home page
Need programming help? We''ve got your covered. 14.2 million lines of source code examples to build from.4.2 thousand tutorials and articles to learn from.Discussion boards, coding contests with prizes, and 2 thousand open programming jobs.
server, vbscript, database, winapi, bulletin, programming, code, visual, active, function, basic, pages, game, dcom, directx, downloads, microsoft, functions, msaccess, odbc, long, single, integer, boolean, byte, double, currency, variant, free, string, object, date, type, data, subroutines, certify, front, dbgrid, decompiling, decompiler
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Ecole supérieure, Formation télécommunication, Formation management, Formation informatique, formation marketing
MIT University de Dakar, agréé par l''Etat du Sénégal, forme des techniciens et cadres supérieurs rompus aux meilleures pratiques professionnelles, dans les domaines de l''Informatique, réseaux Télécommunications, Génie logiciel, Management, Finance, Marketing et du commerce avec des programmes dynamiques et favorisant le développement des compétences et l''insertion professionnelles. Il intègre les principales technologiques de l''industrie et du monde du travail, comme Cisco, Microsoft, Oracle, Google, linux, PMP, ITIL.
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IT Versity | making IT resourceful
As part of this blog post we will see detailed instructions about setting up development environment for Spark and Hadoop application development using Windows. We have used Windows 10 for this demo using 64 bit version on Setup development environment on Windows For each of the section we will see Why we need to perform the step? How to perform the step? How we can validate whether it is working as expected? We will also develop few programs to validate whether our setup is progressing as expected or not In case you run into any issues, please log those in our forums Click here for the coupons for our content. Our training approach is certification oriented. Click here to go to our state of the art lab to practice Spark hands on for more realistic experience Setup Development environment on Windows We are considering fresh Windows laptop. We will start with Java/JDK on Windows laptop and we will go through step by step instructions to setup Scala, sbt, WinUtils etc. For integrated development using IntelliJ Typically programming will be done with IDEs such as IntelliJ IDEs are typically integrated with other tools such as git which is code versioning tool. Tools like git facilitate team development. sbt is build tool for Scala. Once applications are developed using IDE, they are typically built using tools like sbt WinUtils is required for HDFS APIs to work on Windows laptop Unless java is setup and validated successfully do not go further. If you need our support, please log the issues in our forums. Setup Java and JDK Steps are almost same as demonstrated for Mac as well as Linux Before getting started check whether Java and JDK are installed or not Launch command prompt - Go to search bar on windows laptop, type cmd and hit enter Type java -version If it return version, check whether 1.8 or not. It is better to have 1.8 version. If you have other version, consider uninstall and install 1.8 (Search for programs installed and uninstall Java) Type javac -version If it return version, check whether 1.8 or not. It is better to have 1.8 version. If you have other version, consider uninstall and install 1.8 (Search for programs installed and uninstall Java) If you need other versions, make sure environment variables point to 1.8 If you do not have Java at all, make sure to follow the instructions and install 1.8 version of JRE and JDK. Why do we need to install Java and JDK? Scala, Spark and many other technologies require Java and JDK to develop and build the applications. Scala is JVM based programming language. How to install Java and JDK? Go to official page of Oracle where downloads are available Accept the terms and download 64 bit version How to validate? Use java -version and javac -version commands in command prompt and see they return 1.8 or not Setup Scala with IntelliJ Steps are almost same as demonstrated for Mac as well as Linux Now install IntelliJ There are 2 versions of IntelliJ community edition and聽enterprise edition Community edition is free and at times you need to install additional plugins Enterprise edition is paid and supported and comes with most of the important plugins pre-installed. Also set of plugins are bundled together as part of enterprise edition Unless you have corporate license for now consider installing community edition. Why IntelliJ? IntelliJ is created by JetBrains and it is very popular in building IDEs which boost productivity in team development Scala and SBT can be added as plugins using IntelliJ Most commonly used tools such as git comes out of the box for versioning the code in the process of application development by teams. How to Install? Go to the downloads page and make sure right version is chosen. Once downloaded, just double click on installable and follow typical installation process How to validate? We will develop a program as part of next section to validate. Develop Hello World Program We will see how to create first program using Scala as sbt project. Steps are almost same as demonstrated for Mac as well as Linux Click on New Project For the first time, it selects java by default. Make sure to choose Scala and then sbt Give name to the project -> spark2demo Choose right version of Scala -> 2.11.12 Choose right version of sbt ->聽0.13 It will take some time to setup the project Once done you will see src directory with the structure src/main/scala src/main/scala is base directory for scala code build.sbt under project name - name of the project version - project version (0.1) scalaVersion - scala version (2.11.12) name := "spark2demo" version := "0.1" scalaVersion := "2.11.12" Steps to develop HelloWorld program Right click on src/main/scala Choose Scala Class Give name as Hello World and change type to object Replace the code with below code object HelloWorld { def main(args: Array): Unit = { println("Hello World") } } Right click and run the program You should see Hello World in the console Make sure IntelliJ setup with Scala is done and validated by running Hello World program. In case of any issues, please log in our forums. Setup sbt and run application Once the application is developed, we need to build jar file and migrate to higher environments. sbt is the build tool which is typically used for Scala based projects. Why sbt? To build scala based applications to jar file Validate jar file to make sure program is running fine How to setup sbt? Setup sbt by downloading relevant downloadable from this link For Windows use Microsoft Installer (msi) For Mac install using brew How to validate sbt? Copy the path by right clicking the project in IntelliJ Go to command prompt and cd to the path Check the directory structure, you should see src directory build.sbt Run sbt package It will build jar file and you will see the path Run program by using sbt run command You should see Hello World printed on the console Add Spark dependencies to the application As we are done with validating IntelliJ, Scala and sbt by developing and running the program, now we are ready to integrate Spark and start developing Scala based applications using Spark APIs. Steps are almost same as demonstrated for Mac as well as Linux Update build.sbt by adding libraryDependencies += "org.apache.spark" %% "spark-core" % "2.3.0" Enable auto-import or click on refresh on type right corner It will take some time to download dependencies based on your internet speed Be patient until all the spark based dependencies are downloads. You can expand External Dependencies in project view to see list of jars downloaded. build.sbt will look like this name := "spark2demo" version := "0.1" scalaVersion := "2.11.12" libraryDependencies += "org.apache.spark" %% "spark-core" % "2.3.0" Setup WinUtils to get HDFS APIs working Not required for Mac or Linux Why to install winutils? In the process of building data processing applications using Spark, we need to read data from files Spark uses HDFS API to read files from several file systems like HDFS, s3, local etc For HDFS APIs to work on Windows, we need to have WinUtils How to install winutils? Click here to download 64 bit winutils.exe Create directory structure like this C:/hadoop/bin Setup new environment variable HADOOP_HOME Search for Environment Variables on Windows search bar Click on Add Environment Variables There will be 2 categories of environment variables User Variables on top System Variables on bottom Make sure to click on Add for System Variables Name: HADOOP_HOME Value: C:\\hadoop聽(don't include bin) Also choose聽Path and聽click on Edit Click on Add Add new entry聽%HADOOP_HOME%\\bin Setup Data sets You need to have data sets setup for your practice. Steps are almost same as demonstrated for Mac as well as Linux Go to our GitHub data repository You can setup data sets in 2 ways If you have git, you can clone to the desired directory on your PC Otherwise use download, it will download zip file Unzip and copy to C:\\data You will have multiple datasets ready for your practice Develop first spark application Now we are ready to develop our first Spark application. Steps are almost same as demonstrated for Mac as well as Linux Go to src/main/scala Right click and click on New -> Package Give the package name as retail_db Right click on retail_db and click on聽New聽->聽Scala Class Name: GetRevenuePerOrder Type: Object Replace the code with this code snippet package retail_db import org.apache.spark.{SparkConf, SparkContext} object GetRevenuePerOrder { def main(args: Array): Unit = { val conf = new SparkConf(). setMaster(args(0)). setAppName("Get revenue per order") val sc = new SparkContext(conf) sc.setLogLevel("ERROR") val orderItems = sc.textFile(args(1)) val revenuePerOrder = orderItems. map(oi => (oi.split(", ")(1).toInt, oi.split(", ")(4).toFloat)). reduceByKey(_ + _). map(oi => oi._1 + ", " + oi._2) revenuePerOrder.saveAsTextFile(args(2)) } } Program takes 3 arguments args(0) -> execution mode args(1) -> input path args(2) -> output path Running the application Go to Run menu -> Edit Configurations Add new application Give application name聽GetRevenuePerOrder Choose main class: retail_db.GetRevenuePerOrder Program arguments:聽local Use classpath for module: Choose聽spark2demo Click on Apply and then Ok Now you can run the application by right clicking and choosing聽Run "GetRevenuePerOrder" Go to output path and check files are created for output or not Build jar file Let us see how we can build the jar file and run it. Steps are almost same as demonstrated for Mac as well as Linux Copy the path by right clicking the project in IntelliJ Go to command prompt and cd to the path Check the directory structure, you should see src directory build.sbt Run sbt package It will build jar file and you will see the path It will be typically /target/scala-2.11/spark2demo_2.11-0.1.jar We can also run using sbt "run-main" sbt "run-main retail_db.GetRevenuePerOrder local " Now you are ready with the jar file to get deployed. If聽you have any issues please raise it in our forums. Download and Install Spark on Windows Now let us see the details about setting up Spark on Windows Skip this for Mac or Linux (we will see again after setting up Ubuntu using Windows subsystem for Linux) Why to setup Spark? Before deploying on the cluster, it is good practice to test the script using spark-submit. To run using spark-submit locally, it is nice to setup Spark on Windows How to setup Spark? Install 7z so that we can unzip and untar spark tar ball, from here Download spark 2.3 tar ball by going here Choose Spark Release: 2.3.0 Choose a package type:聽Pre-built for Hadoop 2.7 or later It gives the appropriate link pointing to mirror Click on it go to mirror and click on it to download Use 7z software to unzip and under to complete setup of spark We need to configure environment variables to run Spark any where Keep in mind that Spark is not very well supported on Windows and we will see how to setup on Ubuntu using Windows subsystem for Linux. Configure environment variables for Spark Let us see how we can configure environment variables of Spark Skip this for Mac or Linux Why to setup Environment Variables? To run spark-submit, spark-shell from any where on the PC using the jar file. How to configure Environment Variables? Let us assume that Spark is setup under聽C:\\spark-2.3.0-bin-hadoop2.7 Setup new environment variable SPARK_HOME Search for Environment Variables on Windows search bar Click on Add Environment Variables There will be 2 categories of environment variables User Variables on top System Variables on bottom Make sure to click on Add for System Variables Name: SPARK_HOME Value: C:\\spark-2.3.0-bin-hadoop2.7聽(don't include bin) Also choose聽Path and聽click on Edit Click on Add Add new entry聽%SPARK_HOME%\\bin How to validate? Go to any directory and run spark-shell Run Spark job using spark-shell Using spark-shell we can validate ad hoc code to confirm it is working. It will also confirm whether the installation is successful or not. Skip this for Mac or Linux Run spark-shell Execute this code and make sure it return results val orderItems = sc.textFile("C:\\\\data\\\\retail_db\\\\order_items") val revenuePerOrder = orderItems. map(oi => (oi.split(", ")(1).toInt, oi.split(", ")(4).toFloat)). reduceByKey(_ + _). map(oi => oi._1 + ", " + oi._2) revenuePerOrder.take(10).foreach(println) On Windows after showing the output, it might throw the exception. Run Spark application using Spark submit We can validate the jar file by using spark-submit Skip this for Mac or Linux spark-submit is the main command to submit the job --class retail_db.GetRevenuePerOrder, to pass the class name By default master is local, if you want to override we can use --master After spark-submit and control arguments we have to give jar file name followed by arguments spark-submit --class retail_db.GetRevenuePerOrder local Setup Ubuntu using Windows subsystem for Linux Now let us see how we can setup Ubuntu on Windows 10 Skip this for Mac or Linux Why to setup Ubuntu? Windows is not completely fool proof in running spark jobs. Using Ubuntu is better alternative and you will run into fewer issues Using Windows subsystem for Linux we can quickly set up Ubuntu virtual machine How to setup Ubuntu using Windows subsystem for Linux? Follow this link to setup Ubuntu using Windows subsystem for Linux Complete the setup process by giving username for the Ubuntu virtual machine Accessing C Drive using Ubuntu built using Windows subsystem for Linux Skip this for Mac or Linux It is better to understand how we can access C drive in Ubuntu built using subsystem for Linux It will facilitate us to access files in C drive In Linux root file system starts with / and does not have partitions like C drive The location of C drive is /mnt/C Setup Java and JDK on Ubuntu Skip this for Mac or Linux Before getting started check whether Java and JDK are installed or not Launch command prompt - Go to search bar on windows laptop, type cmd and hit enter Type java -version If it return version, check whether 1.8 or not. It is better to have 1.8 version. If you have other version, consider uninstall and install 1.8 (Search for programs installed and uninstall Java) Type javac -version If it return version, check whether 1.8 or not. It is better to have 1.8 version. If you have other version, consider uninstall and install 1.8 (Search for programs installed and uninstall Java) If you need other versions, make sure environment variables point to 1.8 If you do not have Java at all, make sure to follow the instructions and install 1.8 version of JRE and JDK. Why do we need to install Java and JDK? Scala, Spark and many other technologies require Java and JDK to develop and build the applications. Scala is JVM based programming language. How to install Java and JDK on Ubuntu? sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer How to validate? Use java -version and javac -version commands in command prompt and see they return 1.8 or not Download and Untar Spark Now let us see the details about setting up Spark on Ubuntu or any Linux flavor or Mac. Why to setup Spark? Before deploying on the cluster, it is good practice to test the script using spark-submit. To run using spark-submit locally, it is nice to setup Spark on Windows How to setup Spark? Download spark 2.3 tar ball by going here. We can use wget to download the tar ball. Choose Spark Release: 2.3.0 Choose a package type:聽Pre-built for Hadoop 2.7 or later It gives the appropriate link pointing to mirror Click on it go to mirror and click on it to download Use tar xzf command to untar and unzip tar ball -聽tar xzf spark-2.3.0-bin-hadoop2.7.tgz We need to configure environment variables to run Spark any where Setup Environment Variables - Mac or Linux Let us see how we can configure environment variables of Spark Why to setup Environment Variables? To run spark-submit, spark-shell from any where on the PC using the jar file. How to configure Environment Variables? Let us assume that Spark is setup under /Users/itversity/spark-2.3.0-bin-hadoop2.7 on Mac /mnt/c/spark-2.3.0-bin-hadoop2.7 on Ubuntu built using Windows subsystem Setup new environment variable SPARK_HOME and update PATH Make sure to restart terminal (no need to reboot the machine) # On Mac - .bash_profile export SPARK_HOME=/Users/itversity/spark export PATH=$PATH:$SPARK_HOME/bin:$SPARK_HOME/sbin # On Ubuntu built using Windows subsystem for Linux - .profile export SPARK_HOME=/mnt/c/spark-2.3.0-bin-hadoop2.7 export PATH=$PATH:$SPARK_HOME/bin How to validate? Go to any directory and run spark-shell val orderItems = sc.textFile("C:\\\\data\\\\retail_db\\\\order_items") val revenuePerOrder = orderItems. map(oi => (oi.split(", ")(1).toInt, oi.split(", ")(4).toFloat)). reduceByKey(_ + _). map(oi => oi._1 + ", " + oi._2) revenuePerOrder.take(10).foreach(println) Run jar file using Spark Submit We can validate the jar file by using spark-submit spark-submit is the main command to submit the job --class retail_db.GetRevenuePerOrder, to pass the class name By default master is local, if you want to override we can use --master After spark-submit and control arguments we have to give jar file name followed by arguments spark-submit --class retail_db.GetRevenuePerOrder local Conclusion and where to go from here This post covers how to set up development environment to work on Spark projects using Scala as a team However to gain in-depth knowledge of Spark, you can follow our content and practice on our state of the art big data cluster Click here for the coupons for our content Click here to go to our state of the art lab to practice Spark hands on for more realistic experience
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