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[{"key": "dc.contributor.advisor", "value": "Taipalus, Toni", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Ahonen, Mika", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2017-05-16T05:29:18Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2017-05-16T05:29:18Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2017", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/53952", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4m\u00e4n kandidaatintutkielman tarkoituksena on kirjallisuuskatsauksen keinoin\r\nkuvata relaatio- ja graafitietokantojen eroavaisuuksia tietomalliensa,\r\nk\u00e4ytt\u00f6kohteidensa ja hallintaj\u00e4rjestelmiens\u00e4 n\u00e4k\u00f6kulmista. Relaatiomalli on\r\nsaavuttanut itsest\u00e4\u00e4n selv\u00e4n aseman koko tietokanta-alalla, niin akateemisessa\r\nkuin liiketoiminnallisissakin yhteyksiss\u00e4, mutta my\u00f6s harrastajapiireiss\u00e4. 1990-\r\nluvulta l\u00e4htien, internetin hy\u00f6dynt\u00e4misen yleistyess\u00e4 ja linkittyneen,\r\nverkkomuotoisen tiedon lis\u00e4\u00e4ntyess\u00e4 yh\u00e4 suurempi osa tiedosta on\r\nrakenteeltaan osittain tai kokonaan j\u00e4sentym\u00e4t\u00f6nt\u00e4, jatkuvasti uudelleen\r\nmuotoutuvaa ja verkottunutta. Verkkomuotoinen tieto tietokantojen yhteydess\u00e4\r\nmukautuu niin sanottuun graafimalliin, jonka teoreettinen tausta on jo pitk\u00e4\u00e4n\r\ntunnetussa verkkoteoriassa. Graafimuotoisen tiedon k\u00e4sittely perinteisill\u00e4\r\nrelaatiotietokannan hallintaj\u00e4rjestelmill\u00e4 (RDBMS) on osoittautunut\r\nhaasteelliseksi. T\u00e4m\u00e4 johtuu graafeille ominaisten, objektien v\u00e4listen liitoksien\r\nrunsaasta m\u00e4\u00e4r\u00e4st\u00e4. Relaatiotietokannassa liitoksien runsas m\u00e4\u00e4r\u00e4 aiheuttaa\r\nRDBMS:lle merkitt\u00e4vi\u00e4 suorituskykyongelmia. Lis\u00e4ksi osittain tai kokonaan\r\nj\u00e4sentym\u00e4tt\u00f6m\u00e4n tiedon k\u00e4sittely on relaatiotietokannassa haasteellista, koska\r\nsiin\u00e4 hy\u00f6dynnet\u00e4\u00e4n skeemaa eli tietokannan luonnin yhteydess\u00e4 m\u00e4\u00e4ritelty\u00e4\r\ntietokannan rakenteellista mallia. N\u00e4iden pohjalta on syntynyt tarve kehitt\u00e4\u00e4\r\nuudenlaisia, graafeille sopivampia tietokannanhallintaj\u00e4rjestelmi\u00e4 (DBMS).\r\nUudenlaiset tietokannat kuuluvat NoSQL-tietomalliperheeseen. SQL on\r\nyleisesti RDBMS:iss\u00e4 k\u00e4ytetty kyselykieli ja termill\u00e4 NoSQL pyrit\u00e4\u00e4n luomaan\r\neroa perinteiseen relaatiomalliin. Sana NoSQL on akronyymi sanoista Not only\r\nSQL. NoSQL-tietomalliperheeseen kuuluvat muun muassa dokumentti-, avainarvopari-,\r\nsarakeperhe-, ja graafitietokannat. T\u00e4ss\u00e4 kandidaatintutkielmassa\r\nkuvataan relaatiomalliin ja sen soveltamiseen liittyv\u00e4t perusk\u00e4sitteet, mutta\r\npainotus on enemm\u00e4n graafimallissa ja sen soveltamisessa sek\u00e4 siihen\r\nliittyviss\u00e4 hy\u00f6dyiss\u00e4, haasteissa ja sovellusalueiden kuvaamisessa. Lis\u00e4ksi\r\ntutkielmassa kuvataan kaksi RDBMS:n ja GDBMS:n (Graph Database\r\nManagement System) k\u00e4ytt\u00f6tapauksia vertailevaa tutkimusta. Kirjallisuuden\r\npohjalta voidaan tehd\u00e4 johtop\u00e4\u00e4t\u00f6s, ett\u00e4 GDBMS:t sopivat tarkoitukseensa ja\r\novat vakiinnuttamassa paikkaansa tietokanta-alalla. Silti niiden k\u00e4yt\u00f6ss\u00e4 on\r\nedelleen haasteita.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "The purpose of this Bachelor\u2019s thesis is to describe differences between\r\nrelational and graph database in terms of data model they use, where they are\r\nused and what kind of management systems they are used on. The scientific\r\nmethod used in this thesis is based on literature review. In the area of databases\r\na relational model and its applications have reached a self-evident status\r\nconsisting academic and business contexts but also private enthusiasts. Since\r\nthe early nineties along with Internet becoming more common and the amount\r\nof linked network related data increased, is data organized more and more\r\nsemi-structured or unstructured ways and it is also frequently re-structured\r\nand linked. Relating to databases a networked data adapts to so called graph\r\nmodel, where its theoretical model is based on mathematical graph theory.\r\nManipulating the graph data by traditional relational database management\r\nsystems (RDBMS) has been proven to provoke challenges. This is due to a large\r\namount of joins between objects characterized by the graphs. In the relational\r\ndatabase a large amount of joins causes a significant performance reduction for\r\nRDBMS. The relational database makes use of a schema which is a model for\r\ndatabase structure and is defined while creating the database. For that reason a\r\nprocessing of semi-structured or unstructured data in the relational database is\r\nchallenging. Based on previously announced facts, there has emerged a need to\r\ndevelop new type of and more suitable database management systems (DBMS)\r\nand data models for the graphs. New type of data model family is called\r\nNoSQL. In the RDBMS, SQL is commonly used as query language and the term\r\naims to make a difference to relational databases. Therefore the word NoSQL is\r\nan acronym for the words Not only SQL. Key-value stores, column family\r\nstores, document stores and also graph databases belong to the NoSQL. This\r\nBachelor\u2019s Thesis describes the basic concepts of relational model but the\r\nemphasis is more on the side of the graph model, benefits and challenges it\r\nfaces and in the descriptions of application domains for the graph model.\r\nMoreover, the thesis describes two benchmarked use cases of RDBMS and\r\nGDBMS. Based on the literature used in the thesis it can be concluded that\r\ngraph GDBMSs fit for their purpose, are consolidating status in the area of data\r\nbases but challenges still exist.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Mika Ahonen (mijuahon) on 2017-05-16 05:29:18.008071. Form: Kandidaatintutkielma -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/kandin-tutkielma-lomake). JyX data: [jyx_publishing-allowed (fi) =False]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2017-05-16T05:29:18Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201705162354.pdf: 697766 bytes, checksum: 236da79077a6fdab4980eb38a153e43a (MD5)\r\nlicense.html: 1118 bytes, checksum: c4115b066bec7ab53316e874f79ab294 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2017-05-16T05:29:18Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201705162354.pdf: 697766 bytes, checksum: 236da79077a6fdab4980eb38a153e43a (MD5)\r\nlicense.html: 1118 bytes, checksum: c4115b066bec7ab53316e874f79ab294 (MD5)\r\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "35", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": "", "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "relational database", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "graph database", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "NoSQL", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "MySQL", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Neo4j", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "RDBMS", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "GDBMS", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Relaatio- ja graafitietokantojen sek\u00e4 niiden hallintaj\u00e4rjestelmien vertailua", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "bachelor thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201705162354", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Kandidaatintutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Bachelor's thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Informaatioteknologian tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Information Technology", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Informaatioteknologia", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Information Technology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tietoj\u00e4rjestelm\u00e4tiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Information Systems Science", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2017-05-16T05:29:18Z", "language": "", "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_7a1f", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "restrictedAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "bachelorThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "This material has a restricted access due to copyright reasons. It can be read at the workstation at Jyv\u00e4skyl\u00e4 University Library reserved for the use of archival materials: https://kirjasto.jyu.fi/en/workspaces/facilities.", "language": "en", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "Aineistoon p\u00e4\u00e4sy\u00e4 on rajoitettu tekij\u00e4noikeussyist\u00e4. Aineisto on luettavissa Jyv\u00e4skyl\u00e4n yliopiston kirjaston arkistoty\u00f6asemalta. Ks. https://kirjasto.jyu.fi/fi/tyoskentelytilat/laitteet-ja-tilat.", "language": "fi", "element": "rights", "qualifier": "accessrights", "schema": "dc"}]
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