Ingxenye 8: Finyelela ifomu lokufaka imininingwane yedatha
Qaphela : Lesi sihloko singomunye uchungechunge oluthi "Ukwakha Idatha Yokufinyelela Kuvela Phansi." Ngemuva kwesizinda, bheka Ukudala Ubudlelwane , obumba isimo esiyisisekelo se-Patricia Widgets database exoxwa kulokhu okufundiswayo.
Manje ukuthi sidale imodeli yobudlelwane, amatafula nobuhlobo bomlando wePatricks Widgets , sisuke siqala ekuqaleni. Kuleli qophelo, une database egcwele ukusebenza, ngakho ake siqale ukufaka izinsimbi kanye namacilongo okwenza kube umsebenzisi-friendly.
Isinyathelo sethu sokuqala ukuthuthukisa inqubo yokufaka idatha. Uma ngabe uhlola i-Microsoft Access njengoba sakhele database, mhlawumbe uqaphele ukuthi ungakwazi ukwengeza idatha ematafuleni ekubukeni kwedathaet ngokumane uchofoze umugqa ongenalutho phansi kwetafula bese ufaka idatha lokho kuvumelana nanoma yiziphi izinkinga zethebula. Le nqubo ikuvumela ukuba usebenzise imininingwane yakho, kodwa akuyona inembile noma kulula. Cabanga ukucela umthengisi ukuthi aqhubeke nale nqubo njalo lapho ebhalisa iklayenti entsha.
Ngenhlanhla, Ukufinyelela kunikeza izinqubo eziningi zokungena kwedatha ezinomsebenzisi ngokusebenzisa amafomu. Uma ukhumbule isimo se-Patricks Widgets, esinye sezidingo zethu kwakungukudala amafomu avumela ithimba lokuthengisa ukuba lengeze, lishintshe futhi libuke ulwazi kulwazi.
Sizoqala ngokudala ifomu elula evumela ukuthi sisebenze netafula lamakhasimende. Nayi inqubo yesinyathelo ngesinyathelo:
- Vula imininingwane yePatricks Widgets.
- Khetha ithebhu yamafomu kwimenyu yedatha.
- Chofoza kabili "Yakha ifomu ngokusebenzisa idizadi."
- Sebenzisa inkinobho ethi ">>" ukuze ukhethe zonke izinkambu etafuleni.
- Chofoza inkinobho elandelayo ukuze uqhubeke.
- Khetha isakhiwo sefomu ongathanda. Ukulungiswa kuyisiqalo esihle, esibukekayo, kodwa isakhiwo ngasinye sinemisebenzi yaso. Khetha isakhiwo esifanele kakhulu semvelo yakho. Khumbula, lokhu kuyisisekelo sokuqala, futhi ungashintsha ukubukeka kwefomu langempela emuva kwenqubo.
- Chofoza inkinobho elandelayo ukuze uqhubeke.
- Khetha isitayela, bese uchofoza inkinobho elandelayo ukuze uqhubeke.
- Nikeza ifomu isihloko, bese ukhetha inkinobho yomsakazo efanelekile noma uvule ifomu kwimodi yokufaka idatha noma imodi yokuhlela. Chofoza inkinobho Qedela ukudala ifomu lakho.
Uma usudale ifomu, ungaxhumana nayo njengoba ufisa. Umbono wokuhlela uvumela ukuthi wenze ngokwezifiso ukubukeka kwezinsimu ezithile kanye nefomu ngokwayo. Ukubuka kokungena kwedatha kukuvumela ukuba uhlanganyele nefomu. Sebenzisa izinkinobho ze- ">" ne "<" ukuze uqhubekele phambili nangemuva ngokusebenzisa i-resetset ngenkathi inkinobho ethi "> *" yenza ngokuzenzakalelayo irekhodi elisha ekupheleni kokurekhoda kwamanje.
Manje ukuthi udale leli fomu lokuqala, usukulungele ukwakha amafomu okuzosiza ekufakeni kwedatha amathebula asele ku-database.