Yimaphi izinhlobo yolwazi olukhona namuhla?

Wonke umuntu uzwile inkulumo ethi "yolwazi" izikhathi eziningi. Ngabe kunjalo? Ulwazi oluyisisekelo nje kuphela onobuhle obunikazi ongakwazi ukugcina ulwazi ngendlela efakwe ngokuqinile. Futhi ngosizo lwabo kungenzeka ukugcina idatha ezintweni ezinikezwe izakhiwo ezifanayo.

Ukwakha i-database entsha, kufanele uqale ukucacisa ukuthi yiziphi izinhlobo nezakhiwo zedatha ezizosetshenziswa kuyo (ngaphandle kwalokho ungahluke ngokuphelele kunalokho okudingekayo, ngoba ulwazi oluqukethwe kulwazi kumele luhlelwe).

Manje izinhlobo ezilandelayo zedatha yolwazi zisetshenziselwa: inethiwekhi, ithebula kanye nezibalo. Yiqiniso, ngezindlela eziningi ukhetho lufakwe yizintandokazi zomuntu siqu kanye nolwazi oluthile lwolwazi olwenziwa ngalo msebenzi.

Uhlobo oluthandwa kakhulu yizinkcukacha ze-tabular. Ziqukethe uhlu olulula lwezinto zoluhlobo olufanayo, ngamanye amagama, izinto ezinikezwe izakhiwo ezifanayo. Lolu hlobo lubuye luholele ngoba lukuvumela ukuthi uchithe isikhathi esincane kakhulu ukwakha imininingwane yakho. Ungakha imininingwane yololu hlobo ngosizo lwe-Excel efanayo, kumaseli ewindi eliyinhloko ongangena kuzo zonke izinhlobo zedatha kuma-spreadsheet, okungukuthi umbhalo, amafomula nezinombolo.

Ngaphezu kwalokho, i-database ye-tabular ingamelwa njengetafula elilula le-two-dimensional. Umugqa ngamunye wetafula elinjalo ugcwele ngokugcwele ngamagugu entweni, futhi izindinganiso zendawo zikhonjiswa ngamakholomu ahlukene.

Amakholomu wetafula elifanayo abizwa ngokuthi amasimu. Zonke izinkambu zimakwe ngamagama ahlukene futhi ziqukethe idatha ebonisa amanani wepharamitha adingekayo.

Mayelana nalokhu, godu, khumbula ukuthi uma uhlukanisa izinhlobo zezinqolobane zezinga ngokukhululeka kokudala nokugcwalisa, khona-ke i-database izothatha indawo yokuqala ngenxa yale ndawo.

Amarekhodi ngento - ukubiza amagama emigqa ngayinye yetafula le database. Lezi zingeniso ngokwabo zihlukaniswe ngezigaba eziningana ezinkampanini zisebenzisa amakholomu etafuleni, ngakho wonke amarekhodi angamaqoqo amanani adingekayo akhona emasimini.

Uma ngabe sicabangela ezinye izinhlobo zezinqolobane, manje kufanele sichaze imigomo ekhethekile kakhulu. Ukuze uhlele isisekelo setafula, kunezintathu. Sifunde kakade ngamasimu namarekhodi mayelana nento, manje sethula incazelo yensimu ebalulekile.

Inkambu eyisihluthulelo ingenye yamasimu etafuleni, inani elinikezwe kuwo, ngokukhethekile lihlukanisa noma yiliphi irekhodi elisezintheni zetafula.

Insimu ebalulekile ngokuvamile iqukethe uhlobo lwedatha yefomu "counter". Ngokuvamile, lezi zindlela ezilandelayo zedatha zisetshenziselwa: "inombolo yokusungula", "ikhodi yomkhiqizo", njll.

Izinhlobo zezinsimu ngokwabo zivame ukwenziwa idatha equkethe. Izinhlobo eziyinhloko ziyi: "counter", "umbhalo", "izinombolo", "usuku / isikhathi", "imali", "enengqondo", "hyperlink".

Uhlobo ngalunye lusetshenziswa ngokususelwa kulokho okudingekayo. Kuyinto engenangqondo, uzovuma, ukusebenzisa uhlobo "hyperlink" lapho okukhethwa kukho "usuku / isikhathi" kuyadingeka. Uma wenza lokho kufaka, khona-ke wonke umsebenzi uzohamba, njengoba usho, awry, okwenza kube nemininingwane engabalwa ngokungalungile.

Yingakho kufanele uhlukanise phakathi kwezinhlobo ezihlukene zezinqolobane kanye nezinhlobo zamasimu abamele kuwo.