Overview na database gudanar da tsarin

All mutum aiki ne inextricably nasaba da dama bayanai kundayen da bayanai. A Library rajista, allon rubutu, adireshin kan wayarka ta hannu, ko kwamfutar hannu - wannan ba wani cikakken jerin ginannun bayanai, wanda muka yi amfani. Amma kwakwalwa kamar daidaici, don haka mu ba da definition.

Saboda haka, a database (DB) - a sa na Azancin related data cewa bayyana bayanai Jihar abubuwa a cikin daban-daban batun yankunan da sarrafa shi da kwamfuta kayan aiki.

Database management system ne a software da kuma harshen yanayi domin samar da, manajan da kuma sarrafa bayanai sansanonin. Assigning database:

• Aiki tare da kwasfansu a waje (woje, kaset, da dai sauransu ...) da kuma RAM;
• Raba masu amfani.
• canza iko, archiving da database dawo.
• bayar da damar yin amfani da harshen bayanai aiki .
• kayayyakin aiki, don halitta, gyara, da kuma database management.

Kawai sa, da database kayyade Hanyar ajiya, da kuma database na samar da wajen domin aiki. Bugu da ƙari, database gudanar da tsarin kasu kashi janar amfani da tsarin da za su iya rike wani iri-iri na bayanai da kuma musamman tsara don wani takamaiman batu yanki ko irin bayani. Wani misali da wani musamman database gudanar da tsarin ne abu-daidaitacce.

Da zumunci Management System

Tun zuwan kwamfuta databases shi ya kasance da yawa model na aikinsu, amma zumunci model ya fi duniya. Yana da wani related sa na bayanai Tables, tabbatar da mutunci da mafi ƙarancin redundancy na bayanai. Table model ya zartar da mafiya yawa daga batun yankunan, da kuma kasuwar ne da zumunci database management system suka fara samar hanzari. A adadi ya nuna wani misali da wani zumunci tsarin "tushe na dalibai."

Duk da zumunci DBMSs tallafawa ANSI SQL harshen misali da manyan ka'idojin da zumunci model, da sa aikace-aikace don gudu a kan daban-daban bayanai. Bugu da ƙari, manyan databases suna da nasu SQL tsawo tarawa. Misalan management system database na manyan-sikelin ayyukan - wannan shi ne Microsoft SQL Server da Oracle.

A da zumunci model nasarar amfani a ci gaba da Internet ayyukan. Misalai ne MySQL database da PostgreSQL.

NoSQL fasahar

A karuwa a data kundin da wuya daga cikin dangantakar da ya kai ga zargin sabon database gudanar da tsarin. Bayani ya daina zama mai zaman kanta da juna, da kuma wani lokacin har ba zai yiwu ba ga tsananin bayyana da tsarin. Da zumunci databases iya daina jimre da irin wannan ayyuka. Wannan ya kai ga zargin wani sabon nau'in bayanai databases da kuma gudanar da tsarin, tare da aka sani da NoSQL ( «babu SQL»).

Babban Categories NoSQL databases:

1. "Key Value". The rare database - Redis, Voldemort, Tokyo majalisar da kuma Dynomite.
2. Kwafi masu kunnen doki database BigTable. An ci gaba da Google for ciki amfani search engine. hukumance BigTable An ba da miƙa, amma akwai wani database a kan ta da asali. Yana Hadoop, Hypertable kuma Cassandra.
3. Daftarin aiki-daidaitacce. Mafi mashahuri Berkeley DB XML, MongoD, wanzu da kuma CouchDB.
4. Bisa a kan tushe na jadawali ka'idar. Amfani da Neo4j, Sones graphDB da AllegroGraph.

gaba da DBMS

Market da zumunci database gudanar da tsarin ci gaba da girma da kuma mafi kuma mafi karkata zuwa amfani da NoSQL shawara. Hakika, a cikin "classic» SQL sayar da wata babbar adadin software tsarin mai sãɓãwar launukansa wuya, da kuma a gare su akwai irin wannan kasuwar Refayawa kamar Microsoft da kuma Oracle. Amma tare da wasu yaƙĩni mu iya ɗauka cewa NoSQL a cikin shekaru masu zuwa za a iya muhimmanci hambarar da shugabannin a cikin ci gaban da hadaddun bayanai tsarin.