Nokuda kuramba kukura zvigadzirwa, nyika ikozvino nguva kuzozivisa basa masangano makuru pasina Database zvakaoma chaizvo. Ungangove, kwete zvose kuziva kuti pane zvakasiyana chaizvo siyana Databases. Uye vose vane zvavo zvakanakira nekuipira.
Ndezvipi hierarchical Database
Vakanga kutanga kushandiswa pamakombiyuta ichitova refu chaizvo nguva. Oddly zvakakwana, pasinei ose "kare" pamusoro pezvingoro izvi, vachiri yakakurumbira mune dzimwe makambani. Dzinomirira chepiramidhi. minda All uye zvinyorwa aishamwaridzana, dzikarongwa pamwe nemumwe. In akadaro chepiramidhi kungashandiswa se kurekodha yepamusorosoro uye ezasi mumatunhu. kupinda mumwe uchiwirirana ine mhando ngetani murayiro vane kuuraya uye kudzora Database utariri enyika. kuvaka ichi, iro rine hierarchical Database, anotarisa haana kuoma zvakadaro, unotofanira kuti uswedere ane muenzaniso mhuri muti. Kunakisa kuti zviri nyore chaizvo kuti ndiwedzere. Mukuwedzera, mushandi anogona kuwana hierarchical hwaro iri nyore. The marapirwo ndechokuti kumisa vanopfuura mumwe richibatanidza "muzukuru" uye "mubereki" kwakaoma zvisingaiti.
Advantages samambure Databases
Network mhando Databases akanyatsojeka akafanana pamusoro. Musiyano mukuru ndiye nemamiriro iro rine chimiro mhando web. Uyezve, kusiyana hierarchical Database, zvinyorwa vanogona akasungirirwa vanopfuura mumwe "mubereki" kana muridzi. Kungofanana ari pamusoro kwemarudzi, nomumbure Databases dzinoshandiswa kunyanya huru makombiyuta, aizivikanwa servers. Network Database vane Usazviomesera. Asi zvinokosha kuziva kuti nhamba Links vane zvavasingakwanisi kuita.
Zvinobatsira ndeyeukama Databases
Mhando ndeyeukama pamusoro Databases ndivo kupfuura anonzwisisa zvose zvigadziko izvi. date All kunochengetwa pamahwandefa, chimwe nechimwe chine ayo munda-kiyi. With kiyi yakadaro, kuzivikanwa iri chaiyo rekodhi nyore. Uyezve, zviri zvachose akasiyana yose tafura. Matafura vari interconnected pamwe yamunenge kiyi. Somuenzaniso, mumwe ane kiyi munda "Product Code" uye "Mutengesi Code" uye mumwe - munda kiyi "bumbiro Mutengesi" uye "mugadziri romutemo". Pakati pavo vachatova kweminda "mutengesi bumbiro." nezvigadziko kwakadaro vakawana mukurumbira nokuda kwayo nyore uye muwanire kana revane zvinyorwa. Zvakaipira zvikuru unoparadza nguva-kutsvaka ruzivo rwaunoda.
Kuvimbisa yemberi chinhu vaifarira Databases
Chinhu vaifarira Database mhando zvinopa inodzidzisa tichikwanisa kuwedzera mhando itsva minda data, uyewo kuwedzera ekuteerera, mavhidhiyo uye mufananidzo mafaira zviri patafura mamiriro. Zvichienzaniswa yapfuura Databases, chinhu vaifarira Databases vane mikana yakawanda. Uyezve, mukugadzirisa zviri nyore zvikuru kupfuura ari pamusoro apa. Zvinhu kuti rine yakadaro kubva zvigadziko mhando, zvakavakwa kuti nezvinhu zviviri mashoko uye mirayiridzo, izvo kukubatsira kuona mhando date kugadzira. Pakati zvikanganiso vangazivikanwa uye yakakwirira Mari unhinhi makambani akawanda kuti awane imwe Database panzvimbo yakare kwakadaro, yagara vaudzewo.
Asi kukura kuva Database tichikwanisa kuwedzera Multimedia zvinhu zviri kuramba dzakakurumbira. Naizvozvo, pane chivimbo chokuti munguva pfupi iri kutevera, masangano akawanda achiri kufamba nazvo-zvinangwa Databases.