A Database Database inogona kunyanya kuDatabase
Izwi rokuti database chinyorwa inowanzosanzwisiswa nokuti inoreva zvinhu zvakasiyana kune vatengesi vakasiyana. Inonyanya kushandiswa maererano neOracle database inoshandiswa.
General Meaning of a Database Instance
Nenzira yakawanda, chinyorwa chepa database chinotsanangura nzvimbo yakakwana yezvinyorwa, kusanganisira RDBMS software, tafura yezvigadzirwa, maitiro akachengetedzwa uye mamwe mabasa. Vashandi vekuchengetedza mabhuku vanogona kuumba mitambo yakawanda yedhekisi imwechete kune zvinangwa zvakasiyana.
Semuenzaniso, sangano rine database rine vashandi inogona kuva nematatu akasiyana-siyana: kushandiswa (kushandiswa kugadzirisa data yeupenyu), pre-production (inoshandiswa kuongorora hutsva huripo kusati yasunungurwa pakugadzirwa) uye kubudirira (inoshandiswa nevashambadzi vekuchengetedzwa kwemashoko kugadzira mashandiro matsva ).
Oracle Database Instances
Kana iwe une dhiabhorosi yeOracle , unoziva kuti imwe nzvimbo ye database inoreva chimwe chinhu chaicho.
Kunyange zvazvo dhesiyo pachayo inosanganisira zvose dheta rekushandiswa uye metadata yakachengetwa mumafaira ezvisikwa pane sevha, chiitiko ndechekubatanidzwa kwepurogiramu uye chiyeuchidzo chinoshandiswa kuwana iyo data.
Semuenzaniso, kana iwe ukasainira pane dhiabhorosi yeOracle, sumo yako yekupinda ndiyo chiitiko. Kana iwe ukavhara kana kuvhara kombiyuta yako, muenzaniso wako unonyangarika, asi database - uye data yako yese-inoramba yakasimba. Chiitiko cheOracle chinogona kuwana imwe nheyo imwe chete panguva imwechete, apo dhesi yeOracle inogona kuwanikwa nemitemo yakawanda.
SQL Server Instances
Chiitiko cheSQL Server kazhinji chinoreva kuiswa kweSQL Server chaiyo. Haisi iyo database pachayo; asi, iyo software inoshandiswa kugadzira database. Kuchengetedza mitambo yakawanda kunogona kubatsira pakushandisa mashizha evharesi nokuti imwe nguva inogona kugadzirirwa kuchengetwa uye kushandiswa kweCPU-chimwe chinhu chausingakwanisi kuita kumunhu mumwe oga mazita mukati memuenzaniso weSQL Server.
Chirongwa cheDashatimendi neChirangaridzo cheDatabase
Zvinogonawo kubatsira kufunga nezvechiitiko chiri mumamiriro ezvinhu neurongwa hwe database. Chirongwa ndiwo metadata inotsanangura kugadzirwa kwedatare uye kuti data ichagadziriswa sei. Izvi zvinosanganisira matafura ayo uye mapoka avo uye chero mitemo inotungamirira data. Semuenzaniso, tafura yevashandi mu database inogona kuva nemitemo yezita, kero, vhidhiyo yevashandi uye tsanangudzo yemabasa. Ichi ndicho chimiro, kana chigadziro, che database.
Chiitiko chebhuku rehwandu ndicho chinyorwa chezvinyorwa zvacho chaiyo panguva ipi zvayo, kusanganisira data pachayo uye ukama hwayo nedzimwe nheyo dziri mudhesi.