Ziziphi iindidi zolwazi ezikhoyo namhlanje?

Ngamnye amaxesha amaninzi weva ibinzana ezifana "database." Ngoko ke yintoni na ke? Sogcino - yinto imifuziselo inkcazelo nje enokusetyenziswa ukugcina ulwazi ngendlela engqongqo ngendlela. Kwakhona ngoncedo lwabo kunokwenzeka ukugcina ulwazi malunga izinto, sanikwa iimpawu ezifanayo.

Ukwenza uvimba entsha, kufuneka kuqala bajonge izinto iintlobo kunye nezakhiwo data zisetyenziswa kuyo (kungenjalo awukwazi ukufumana kanye oko kwakufuneka, kuba iinkcukacha eziqulathwe kule iinkcukacha kufuneka yakhiwe).

Ezi ntlobo zilandelayo ngoku kusetyenziswa sedata: womnatha, tabular kunye oluneqela elinegunya. Kakade ke, ngeendlela ezininzi ngenxa ukhetho akukhethayo kunye nkcukacha ze ulwazi apho umsebenzi wenziwe.

Uhlobo kakhulu ithandwa - database tabular. Ziqulethe uluhlu olulula lwezinto luhlobo efanayo, ngamanye amagama, izinto, sanikwa iipropati afanayo. Olu hlobo yinkokeli nangenxa ekuvumela ukuba usebenzise imali kwi iqokelela iinkcukacha ixesha elininzi kakhulu. Zolwazi okulolu hlobo ukwakhiwa kusetyenziswa Excel enye, apho window engundoqo iseli iyakwazi kwenziwa kuzo zonke iintlobo data spreadsheet, angala, neefomula kunye namanani.

Ukongezelela, database tabular angamelwa njenge elula itheyibhile okuntlandlo-mbini. Umqolo ngamnye kule theyibhile igcwele ngokulandelelana uyayixabisa yento kwaye ixabiso lezakhiwo ziboniswa ngoko kwimiqolo ezahlukeneyo.

Ngokwabo columns ezinjalo kwetafile zibizwa ngokuba emasimini. Onke amacandelo ziphawulwe ngamagama ahlukeneyo kwaye ziqulathe iinkcukacha nokubonakalisa ixabiso parameter oyifunayo.

Kulo mba, masikhumbule kwakhona ukuba xa ngokweendidi iindidi zolwazi kwi lula ekudaleni ugcwalisa etafileni database ziya kuhlala kweyona ndawo yokuqala nje ngenxa yale propati.

Ukurekhodwa yenjongosenzi - nokuthiywa wezintlu ngamnye kwetafile ledatha. Yenza le software iirekhodi bohlulwa kwiinkalo eziliqela encedwa lwemihlathi itafile, ngokunjalo zonke iirekhodi - isika nokuxabisekileyo okufunekayo eziqulathwe emasimini.

Ukuba ucinga ezinye iindidi zedata, kodwa ngoku kwakuza kufuneka ukuchaza ngaphezulu kakhulu ezithile. Kuba lowo, ukuchaza isiseko itafile, ezintathu elishiyiweyo. Inyaniso yokuba iingxelo ezinjalo kunye namasimi yenjongosenzi, siye sele sifundile, kwaye kungoku inkcazelo yentsimi iqhosha.

Intsimi iqhosha ibizwa ngokuba omnye ingentsimi etafileni, inani linikiwe apho kuluphawu ngokukodwa nayiphi na irekhodi equlethwe eziseleni itafile.

ifildi Key ngokufuthi iqulethe uhlobo uhlobo data "counter". Ngokuqhelekileyo, ezi ntlobo data alandelayo asetyenziswa: "Inombolo umbusi", "ikhowudi imveliso", njl ...

Iindidi Amasimi ngokwabo zidla kumiselwa idatha leyo ezikuyo. Eyona eziphambili ze "counter", "umbhalo", "inani", "umhla / ixesha", "imali", "ubhalo", "url".

kusetyenziswa uhlobo ngalunye, ngokusekelwe yintoni na efunekayo umphumo. Asibobulumko ukuba uyavuma, sebenzisa i uhlobo 'url' apho kuyimfuneko ukhetho "Umhla / Ixesha". Ukuba wenza endaweni enjalo, ngoko wonke umsebenzi uya, njengoko bathi, ephosakeleyo, kangangokuba idata ibalwe ngokungachanekanga.

Yiloo nto ke kufuneka umahluko phakathi kweendidi ngamnye zolwazi kunye neentlobo yasendle zimelwe kuzo.