I-Database Candidate Keys Ngezinye iixesha ziba yiiNqobo zeeNqununu
I-key key candidate idibaniso yeempawu ezingasetyenziswa ngokukhethekileyo ukuchonga irekodi yeenkcukacha ngaphandle kokubhekisela kwiphina idatha. Itafile nganye inokuba nomviwa omnye okanye ngaphezulu. Enye yezi khetho zomgqatswa ukhethwa njengetekisi yintloko ephambili . Itheyibhile iqulethe kuphela isitshixo esisisiseko esisodwa, kodwa sinokuqulatha izitshixo zabaviwa abaninzi. Ukuba iqhosha lomviwa lenziwe ngamakholomu amabini okanye ngaphezulu, ngoko kuthiwa yiqhosha lokudibanisa.
Iipropati zeNkcazelo ebalulekileyo
Zonke izitshixo zabaviwa zizinto ezithile eziqhelekileyo. Enye yeepropati kukuba yinto yokuphila kwinqakrazo yomviwa, impawu ezisetyenzisiweyo kufuneka zihlale zifana. Omnye kukuba ixabiso alikwazi ukungafi. Ekugqibeleni, iqhosha lomviwa kufuneka libe linye.
Ngokomzekelo, ukuchonga ngokucacileyo umqeshwa ngamnye inkampani inokusebenzisa inombolo ye-Social Security yomsebenzi. Njengoko ubona, kukho abantu abanegama lokuqala, amagama okugqibela, kunye nesimo, kodwa akukho bantu ababini abanakho inombolo efanayo yeNgcaciso yeNtlalo.
| Inombolo yokhuseleko lasekuhlaleni | Igama lokuqala | Ifani | Isikhundla |
|---|---|---|---|
| 123-45-6780 | Craig | Jones | UMphathi |
| 234-56-7890 | Craig | I-Beal | Nxu lumene |
| 345-67-8900 | Sandra | I-Beal | UMphathi |
| 456-78-9010 | UTrina | Jones | Nxu lumene |
| 567-89-0120 | Sandra | Smith | Nxu lumene |
Imizekelo yeziKhenketho zabaPhezulu
Ezinye iintlobo zeedatha zizibolekelela ngokukhawuleza njengabaviwa:
- Izinombolo zeNcwadi zeeNkcukacha zamazwe ngamazwe-i-ISBN zichonga ngokucacileyo iincwadi kunye neendaba ezihambelanayo. Ukukhutshwa kwe-ISBNs kugxininiswe ngokuqinileyo ngabagcini bamasango kunye ne-ISBN ngokuqhelekileyo ayisayi kuphinda isetyenziswe ngabapapashi.
- Amanqaku e-akhawunti yebhanki-Ininzi zeebhanki aziyi kuphinda ziphindise kwakhona iinombolo ze-akhawunti
- Amanqaku angqalileyo-Nangona iinombolo zeerandi azilawulwa kuwo onke amashishini, kumxholo womthengisi omnye, inombolo ye serial kufuneka ihlale ihlukile.
- Izinombolo zelayisenisi zokuqhuba umqhubi-Ngokuqhelekileyo, la manani aphindaphindiwe. Nangona kunjalo, umntu ohamba esuka kwilizwe ukuya kwilizwe unokufumana inombolo engaphezu kweyodwa yeDL.
- I-ID yomNikezeli kaZwelonke-oogqirha kunye nabanye ababoneleli bezonyango abanelayisenisi nganye banamanani angenani elilodwa le-NPI elikhethekileyo kubo, elikhutshwe yiSebe lezeMpilo kunye neNkonzo zoLuntu.
Nangona kunjalo, ezinye iindidi zolwazi ezinokubonakala ngathi zibaviwa abafanelekileyo zibonakalisa ingxaki:
- Izinombolo zefowuni-Abaninzi abathwali baphinda bahlaziye iinombolo zefowuni, kwaye ababhalisile ngabanye banokuba neenombolo ezininzi zeefowuni kanyekanye.
- Iikhowudi zeeNdawo zoNyaka-i-UPC iyingqayizivele, kodwa umnini we-block ye-UPC unokuhlaziya iimveliso ngokuthanda.
- Amanqaku okurekhoda zonyango-i-MRN ngokubanzi ikhutshwe kwisibhedlele, ngaphandle kwaluphi na uhlobo lwesikhokelo sesizwe malunga
- Izinombolo zoKhuseleko lwezeNtlalo-Nangona zithi ziyingqayizivele, ii-SSN zifumana ukuphinda zenziwe kwakhona, kwaye ukukhwabanisa kwe-SSN kuqhelekile ngokwaneleyo ukwenzela ukuba le nkcazo ibe yingxaki kwiisethi ezinkulu zeenkcukacha. (Ngomxholo womqeshi oqinisekisa ii-SSN, lo mngeni awunayo ingxaki.)