Normalization wa zinasokoneza makompyuta

Grouping wa deta chomwecho tebulo zikhoza kupangidwa m'njira zosiyanasiyana. Zochitika pa ubwenzi ayenera kuikidwa m'magulu monga mfundo ubale ndiko kuti, ayenera kukhala ndi kuchepetsa mwendo deta, komanso kusintha ndondomeko chithandizo wawo ndi pomwe munthu. Vuto lina pulayimale angagwiritse Nawonso achichepere amachita Kupha redundancy, ndipo zimatheka ndi normalization.

Normalization Nawonso achichepere akuimira zoletsa ofunda zida kulenga matebulo kuti amalola kuthetsa mwendo, ndi kugwirizana chofunika mapulogalamu kusungidwa zambiri, kuchepetsa ndalama ntchito tikhale ndi ndi kukonza Nawonso achichepere. Normalization ntchito tichipeza mu yowonjezera matebulo choyambirira Nawonso achichepere chosavuta. Pa lililonse gawo la ndondomeko zimenezi zimathandiza tebulo kuperekedwa mu mawonekedwe yachibadwa. Gawo lirilonse amakhala ndi normalization wa akonzedwa ena a ufulu umene ayenera kutsatira magome onse. Choncho, kuchotsedwa ikuchitika si ofunika tebulo zambiri, ndiwo kuthetsa.

Normalization wa zinasokoneza makompyuta zachokera mfundo zinchito wodalira pa zotsatira. Amaona kuti khalidwe limodzi ndi amadalira ena, ngati iliyonse zopindulitsa kwa lingaliro chachiwiri limafanana ndi zosaposa mmodzi wa mtengo choyamba.

Normalization wa zinasokoneza makompyuta - kazembe akuti Komabe, zikhoza lophatikizana ndi ubwamunalo linagawanika mu njira zosiyanasiyana zachilendo, zomwe akambirana nthawi ina.

A chinthu deta imatengedwa zogwirizana woyamba mawonekedwe zachilendo pamene phindu lililonse chikhumbo ndi chokhacho ake. Ngati lingaliro ena ali ndi phindu chibwereza, zikhoza kukhala chinthu a mumpangidwe yachibadwa. Iwo likukhalira kuti inu mukhoza kulenga akadali aliyense chilli kuti ndi chinthu deta.

A chinthu deta ndi ankaona kuti ndine wachiwiri yachibadwa mawonekedwe pamene ali kale mu mawonekedwe woyamba wabwinobwino, koma aliyense zotsatira zake, osati ongokhala m'njira angathe popanda kudalira kwathunthu mu mawu zinchito kwa aliyense wa makiyi chitsimikizo.

A chinthu deta amati ndine wachitatu mawonekedwe wabwinobwino, ngati kale mu yachibadwa mawonekedwe chachiwiri, koma sananene dependencies aliyense transitive zinthu sanali zikuluzikulu mafungulo. Mu wodalira transitive ambiri amadziwira mgwirizano wa kwakulu pakati pa minda.

Normalization Nawonso achichepere amaponya mapulogalamu waukulu cholinga kubweretsa asapita zonse wachitatu mawonekedwe yachibadwa. Mwa njira iyi mtsogolo kudzakhala kotheka kuti akonze bwino dongosolo zambiri.

Normalization wa zinasokoneza makompyuta: malamulo zoyambirira

Izo ziyenera zopanga malamulo kutsata ntchito normalization. Woyamba ndi kuchotsa magulu kubwereza. M'pofunika apange tebulo osiyana kasungidwe lililonse ya makhalidwe ofanana, amene amalenga kiyi osiyana. Kenako, onetsetsani kuti kuthetsa deta kuthetsa. Pa nthawi imene chobwerapo ubale kokha pa gawo la chinsinsi, ndiye ayenera kuthiridwa mu tebulo osiyana. Lamulo lachitatu ndi kuvomerezedwa kupatula mizati kuti Musati muzidalira pa fungulo. Zochitika adzaikidwe mu tebulo akutali, ngati iwo alibe a mtima kwambiri. Onetsetsani kupeza ufulu wodzilamulira mabwenzi angapo. Pankhaniyi tikulankhula zimene samaoneka kugwirizana konkire pakati pa mabwenzi angapo. Pomaliza, m'pofunika kupeza mabwenzi angapo zokhudzana semantically. Mu ichi normalization Nawonso achichepere udzatha, kenakonso citukuko.