Ita chikwata kubva paspredishiti kune database
Databases inopa nzira yakarongwa yekuchengetedza, kugadzirisa nekudzorera ruzivo. Vanodaro kuburikidza nokushandiswa kwematafura. Kana iwe uchiziva maspredishiti akaita sa Microsoft Excel , iwe unenge watoziva kare kuchengetedza dheta mumutauro wemavara. Hazvisi zvakawanda zvekutarisa kushandiswa kwemaspredishiti kune zvinyorwa.
Databases vs. MaSpreadsheets
Databases zviri nani kudarika mahwendefa okuchengetedza dheta yakawanda, zvisinei, uye yekushandisa dhidhiyo nenzira dzakasiyana-siyana. Iwe unosangana nesimba rezvinyorwa nguva dzose muupenyu hwako hwezuva nezuva.
Somuenzaniso, paunopinda mubhizinesi rebhangi yako yepaIndaneti, bhenji yako inotanga kubvuma kuiswa kwako uchishandisa zita rako rekushandisa uye password uye zvinoratidza kuenzanisa kwako kwekambani uye chero kutengesa. Ndiyo dhesiyo inoshandiswa mushure mezviitiko zvinongedza zita rako rekushandisa uye password rinosanganiswa, uye rinokupa iwe kuwanika kweakaunti yako. Iyo database inoshandura mabhizimisi ako kuti uvaratidze nezuva kana rudzi, sezvaunokumbira.
Pano pane zvishoma zvezviito zvaunogona kuita pane imwe dhesi iyo inenge yakaoma, kana isingakwanisi, kuti iite pane pepafurasi:
- Dzokorora zvose zvinyorwa zvinopindirana nezvimwe zviyero
- Ratidza zvinyorwa muzhinji
- Mutsara-rondedzero marekodhi mumatafura akasiyana
- Ita zvakanyanya zvakawandisa zviyero
Ngatimbokurukurai zvimwe zvemashoko makuru kubva kune database.
Zvimwe zveDatabase
A database yakagadzirwa nematafura akawanda. Kungofanana neExcel mahwendefa, mahwendefa eudhidhiyo ane mapuroni nemirasi. Kirasi imwe neimwe inofananidzwa nechirevo , uye musero mumwe nomumwe unoenderana nekodha imwe chete. Tafura imwe neimwe inofanira kuva nezita rakasiyana nedhesi.
Somuenzaniso, funga tafura yezvinyorwa zvinyorwa ine mazita uye nhamba dzenhare. Iwe ungangodaro wakaisa mapuroni anonzi "FirstName," "LastName" uye "TelephoneNumber." Ipapo iwe unongotanga kuwedzera mitsara iri pasi pemiti iyo ine deta. Mune tafura yekutaurirana kwebhizimisi ine vashandi makumi mashanu, isu taifambisa nefurafura ine mitsara makumi mashanu.
Chimwe chinhu chinokosha chetafura ndechekuti mumwe nomumwe anofanira kuva nekona yekona yekoni kuitira kuti mutsara mumwe nomumwe (kana rekodhi) ave nemunda wakasiyana-siyana kuti uone.
Dhiyabhorosi iri mu database inowedzera kudzivirirwa nezvinonzi zvipingamupinyi . Zvipingamupinyi zvinomira mitemo pane data kuti ivimbise hutendeseka hwacho hwose. Semuenzaniso, chimwe chinhu chakasiyana-siyana chinovimbisa kuti chinhu chikuru chinogona kushandiswa. Chekuvhara chekuchera inodzora rudzi rwe data iwe unogona kupinda-somuenzaniso, Zita remumunda rinogona kugamuchira manyorerwo akajeka, asi nzvimbo yekuchengetedzwa kwevanhu munharaunda inofanira kusanganisira imwe nhamba ye nhamba. Mamwe mhando dzezvipingamupinyi zviripo, zvakare.
Chimwe chezvinhu zvakasimba zvikuru zve database ndezvekugona kugadzira ukama pakati pematafura uchishandisa zvigori zvekunze. Semuenzaniso, unogona kuva neTable Tafura uye Mutemo weDare. Mutengi wega wega anogona kuenzaniswa nekuraira mumutambo wako weAraders. Tora yekurayira, zvakare, inogona kusanganiswa nePafura tafura. Icho chimiro chekugadzira chinosanganisira dhesi rekubatanidza uye inowedzera dhidhiyo yako yekugadzira kuitira kuti iwe ugone kuronga dhidhiro neboka, panzvimbo yekuedza kuisa data yose mutafura rimwe chete, kana mashomanana mashomanana.
A Database Database System (DBMS)
A database yakabata data. Kuti ushandise chaizvo data, iwe unoda Database Management System (DBMS). DBMS ndiro dheyo pachayo, pamwe chete nezvose software nehutano hwekutsvaga data kubva pane d database, kana kuisa data. DBMS inogadzira mibairo, inosimudzira mitemo yepamusoro yepamusoro uye zvipingamupinyi, uye inochengetedza dheseti yemadhora. Pasina DBMS, dhesi yekusungirirwa ichangobva kuunganidzwa kwezvikwereti uye zvinyorwa zvine zvishoma.