Tsis txhob siv Zip code lossis Social Security naj npawb
Databases yog nyob ntawm cov yuam sij los khaws, cais, thiab sib piv lossis tsim kev sib raug zoo ntawm cov ntaub ntawv. Yog hais tias koj tau nyob ze ntawm databases rau ib ntus, koj twb tau hnov txog ntau hom kev tuav khauj: thawj tuav, tus yuam sij tuav , thiab cov yuam sij txawv teb chaws . Thaum koj tsim ib lub rooj tshiab database, koj thov kom koj xaiv ib qho tseem ceeb uas yuav cim tau txhua daim ntawv khaws cia hauv lub rooj.
Vim li cas lub Koom Haum Me Nyuam Yaus Tseem Ceeb Tseem Ceeb
Kev xaiv ntawm tus thawj qhov tseem ceeb yog ib qho kev txiav txim siab tseem ceeb tshaj plaws uas koj tau ua nyob rau hauv tus txheej txheem ntawm cov ntaub ntawv tshiab . Qhov tseem ceeb tshaj plaws yog tias koj yuav tsum xyuas kom meej tias qhov tseem ceeb tau xaiv yog qhov tshwj xeeb. Yog tias nws muaj peev xwm hais tias ob qho ntaub ntawv-yav dhau los, tam sim no, los yog yav tom ntej-yuav sib qhia tau tus nqi qub rau tus cwj pwm, nws yog qhov kev xaiv tsis zoo rau thawj qhov tseem ceeb.
Ib qho tseem ceeb ntawm tus thawj qhov tseem ceeb yog nws siv los ntawm lwm lub rooj uas txuas rau nws hauv cov ntaub ntawv sib paub. Hauv qhov no, lub ntsiab tseem ceeb ua zoo li lub hom phiaj ntawm tus pointer. Vim hais tias cov interdependencies, thawj qhov tseem ceeb yuav tsum muaj thaum sau cov ntaub ntawv, thiab nws yeej tsis hloov.
Kev Xaiv tsis zoo rau lub Koom Haum Me Nyuam Yaus
Dab tsi zoo rau qee cov neeg xav tias qhov kev xaiv kom meej rau qhov tseem ceeb yog qhov kev xaiv ua tsis zoo. Nov yog qee qhov ua piv txwv:
- Zip codes tsis ua zoo tuav thawj rau ib lub rooj ntawm lub zos. Yog tias koj tab tom ua ib qho yooj yim saib lub rooj ntawm lub zos, Zip code kuj yog ib qhov tseem ceeb thawj qhov tseem ceeb. Txawm li cas los xij, thaum tshawb nrhiav ntxiv, tej zaum koj yuav paub tias ntau tshaj ib lub zos muab ZIP code. Piv txwv, New Jersey lub zos ntawm Neptune, Neptune City, Tinton Falls, thiab phab ntsa hauv lub zos txhua tus sib koom 07753 ZIP code.
- Cov lej Xaus Saus tsis ua zoo tuav cov thawj coj ntau yam. Cov neeg feem coob xav txog lawv tus SSN los ua tus kheej thiab tsis xav kom nws pom meej meej rau cov neeg siv database. Qee cov neeg tsis muaj SSNs-neeg txawv teb chaws los yog neeg tsiv teb uas tsis tau txais daim npav Xaus Saus. Cov SSNs kuj rov tuaj yeem rov qab siv tau tom qab tus neeg tuag. Ib tus neeg yuav muaj ntau tshaj ib tus SSN tshaj li thaum lub sijhawm Social Security Administration muab tus xov tooj tshiab rov rau tus neeg dag lossis kev nyiag khoom.
- Email chaw nyob tseem yog ib qho kev xaiv tsis zoo rau qhov tseem ceeb thawj. Txawm hais tias lawv nyias muaj nyias, lawv tuaj yeem hloov lub sijhawm. Tsis tas li, tsis yog txhua tus muaj qhov email chaw nyob.
Xaiv ib qhov tseem ceeb Lub Ntsiab
Yog li, ua li cas thiaj yog qhov zoo qhov tseem ceeb? Feem ntau, tig mus rau koj lub kaw lus database rau kev them nyiaj yug.
Ib qho kev xyaum zoo tshaj plaws nyob rau hauv kev tsim cov qauv siv yog siv qhov tseem ceeb hauv qhov tseem ceeb. Koj cov kev tswj hwm database yuav nquag tsim ib cim identifier uas tsis muaj lub ntsiab lus ntawm lwm qhov system. Piv txwv, koj yuav siv Microsoft Access AutoNumber ntaub ntawv los ua ib daim teb hu ua RecordID. AutoNumber cov ntaub ntawv cia li nce increments lub teb txhua zaus koj tsim ib cov ntaub ntawv. Thaum tus naj npawb nws tus kheej tsis muaj qab hau, nws muab kev ywj pheej rau kev siv tus neeg cov ntaub ntawv hauv cov lus nug.
Lub hauv paus tseem ceeb yog feem ntau luv luv, siv cov lej, thiab muab cov cim tshwj xeeb lossis sib xyaw cov ntawv loj thiab cov tsiaj ntawv me tuaj yeem nrhiav cov ntaub ntawv ceev ceev thiab kev sib piv.