Kawm dab tsi ua rau qhov tseem ceeb los yog qhov phem tseem ceeb hauv cov ntaub ntawv database
Dab tsi yog thawj qhov tseem ceeb? Nyob rau hauv lub ntiaj teb ntawm databases , thawj qhov tseem ceeb ntawm ib lub rooj sib paub zoo uniquely qhia txhua cov ntaub ntawv hauv lub rooj. Databases siv cov yuam sij los sib piv, xaiv, thiab khaws cov ntaub ntawv, thiab tsim kev sib raug zoo ntawm cov ntaub ntawv.
Xaiv cov thawj qhov tseem ceeb hauv cov ntaub ntawv database yog ib qho tseem ceeb tshaj plaws hauv cov txheej txheem. Nws tuaj yeem yog ib tus cwj pwm zoo uas yuav lav tias nws muaj xws li tus Social Security najnpawb ntawm ib lub rooj uas tsis muaj ntau tshaj ib daim ntawv rau ib tus neeg twg los yog - nws zoo dua - nws tuaj yeem tsim los ntawm cov kev tswj hwm kev lag luam xws li tus cim cim thoob ntiaj teb, lossis GUID , hauv Microsoft SQL Server . Cov yuam sij hauv qib yuav muaj ib qho kev cwj pwm los sis ntau tus cwj pwm ua ke.
Thawj tus yawm sij yog cov kev sib txuas mus rau lwm yam ntaub ntawv hauv lwm lub rooj uas tus thawj qhov tseem ceeb raug siv. Nws yuav tsum raug ntaus thaum sau ua ntaub ntawv, thiab nws yuav tsum tsis txhob hloov. Txhua lub rooj hauv database muaj ib kem lossis ob rau cov thawj qhov tseem ceeb.
Piv txwv Tseem Ceeb
Xav tias koj muaj ib tus menyuam kawm ntawv cov lus qhia uas muaj cov ntaub ntawv rau txhua tus menyuam kawm ntawv hauv ib lub tsev kawm ntawv. Tus menyuam kawm ntawv tus ID naj npawb ntawm tus menyuam kawm ntawv yog qhov kev xaiv zoo rau thawj qhov tseem ceeb ntawm cov menyuam kawm ntawv. Tus menyuam kawm ntawv thawj lub npe thiab lub xeem tsis xaiv vim nws muaj feem ntau dua li ib tus menyuam kawm ntawv muaj tib lub npe.
Lwm cov kev xaiv tsis zoo rau cov thawj tuav yog ZIP code, email chaw nyob, thiab chaw ua haujlwm, tag nrho cov neeg tuaj yeem hloov lossis sawv cev rau ntau tus neeg. Tus cim uas siv los ua tus thawj qhov tseem ceeb yuav tsum yog txawv. Txawm tias Social Security naj npawb tuaj yeem hloov tau thaum Social Security Administration muab tso rau ib tus naj npawb rau ib tus neeg uas raug cuam tshuam los ntawm kev nyiag keeb neeg. Qee cov neeg tsis txawm muaj tus nab npawb Social Security. Txawm li cas los xij, vim hais tias ob qho no yog tsawg. Tus Social Security Numbers yog qhov kev xaiv zoo rau thawj qhov tseem ceeb.
Cov Tswv Yim rau Kev Xaiv Cov Qib Zoo
Thaum koj xaiv qhov tseem ceeb thawj qhov tseem ceeb, database lookups yog ceev thiab txhim khu kev qha. Tsuas nco ntsoov:
- Cia nws luv . Vim tias thawj qhov tseem ceeb yog siv los nrhiav thiab sib piv, ib qhov luv luv tseem ceeb txhais tau tias cov kev tswj hwm database yuav ua kom sai dua ib tus thawj thawj qhov tseem ceeb.
- Siv tus xovtooj rau qhov tseem ceeb thaum twg ua tau. SQL neeg rau zaub mov los yog lwm cov kev tswj hwm txoj kev tswj hwm cov txheej txheem cov ntaub ntawv hom sai dua cov ntaub ntawv hom.
- Cia nws yooj yim. Tsis txhob siv cov cim tshwj xeeb, cov chaw nyob, los yog sib xyaw ntawm qhov loj thiab sab qis dua.
- Tsis txhob hloov lub ntsiab qhov tseem ceeb tom qab koj muab nws tso.