Dhiyabhorosi Inobatanidza Nyika Iyo Inongogadzirisa Dhiyabhorosi Iva neIndaneti
Database Consistency inotaura kuti data chete inoshanda inonyorwa kune database. Kana kutengeserana kuchiitwa kunopesana nemirairo yekodzero yemadhodhodhe, iyo yose inotengeswa ichadzorerwa shure uye dhesiyo ichadzorerwa kuhurumende yayo yepakutanga. Kune rumwe rutivi, kana mutengesi uchibudirira kubudirira, inotora database kubva kune imwe nyika iyo inopesana nemitemo kune imwe nyika iyo inowirirana nemitemo.
Nhoroondo yekushandura haina kureva kuti mutengesi wacho wakarurama, chete kuti mutengesi hauna kuputsa mitemo yakatsanangurwa nehurongwa. Nhoroondo yekushandura yakakosha nokuti inodzora dambudziko iri kuuya uye rinoramba dhesi isingakodzeri mumitemo.
Muenzaniso Wekubatana Kwemitemo Pabasa
Semuenzaniso, imwe chinyorwa mune databata inogona kungova nemafungiro emari yesimbi flip se "misoro" kana "miswe." Kana munhu anoshandisa kuedza kuisa "kumativi," mitemo yakafanana ye database haina kubvumira.
Iwe unogona kunge uine ruzivo nemitemo isinganzwisisiki pamusoro pekusiya munda mumhando yepeji yebhusi isina chinhu. Kana munhu achizadza fomu paIndaneti uye akakanganwa kuti azadze imwe yezvidikanwa zvinodiwa, kukosha kweNULL kunoenda kune database, zvichiita kuti fomu irambe yakarambwa kusvikira pasina nzvimbo isina chimwe chinhu mairi.
Kubatana ndiyo nhanho yechipiri yemuenzaniso we ACID (Atomicity, Consistency, Isolation, Durability), iyo inotevedzana yemirayiridzo yekuita kuti kunyatsogadzirwa kwemasitemu kuve kwakarurama.