Dab tsi yog daim teb uas muaj cov ntaub ntawv tshwj xeeb rau cov ntaub ntawv?
Dab tsi yog daim teb uas muaj cov ntaub ntawv tshwj xeeb rau cov ntaub ntawv?

Video: Dab tsi yog daim teb uas muaj cov ntaub ntawv tshwj xeeb rau cov ntaub ntawv?

Video: Dab tsi yog daim teb uas muaj cov ntaub ntawv tshwj xeeb rau cov ntaub ntawv?
Video: Leng Yang - Yog Vim Dab Tsi (Official Full Song | Nkauj Tawm Tshiab) 2020/05/24 2024, Kaum ib hlis
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Kev teeb tsa tus yuam sij tseem ceeb

Lub ntsiab tseem ceeb yog a teb uas muaj cov ntaub ntawv uas yog tshwj xeeb rau txhua tus sau tseg.

Ntawm no, leej twg ntawm cov hauv qab no txhais tau tias yog daim teb uas muaj tus nqi tshwj xeeb rau txhua cov ntaub ntawv?

thawj tus yuam sij

Ib tug kuj yuav nug, dab tsi yog daim teb nyob rau hauv ib tug database? 1) Ib a database tab,a teb yog ib tug qauv ntaub ntawv rau ib daim ntawm cov ntaub ntawv. Teb tau muab tso rau hauv cov ntaub ntawv, uas muaj tag nrho cov ntaub ntawv nyob rau hauv lub rooj uas muaj feem xyuam rau ib qho chaw tshwj xeeb.

Khaws qhov no nyob rau hauv saib, dab tsi yog daim teb thiab cov ntaub ntawv?

Teb thiab cov ntaub ntawv yog ob qho tseem ceeb ntawm cov ntaub ntawv database, uas yog kev sib sau ua ke ntawm cov ntaub ntawv, lossis cov ntaub ntawv. Lub sij hawm " teb " hais txog kab, lossis ntsug pawg ntawm cov ntaub ntawv; lub sij hawm " cov ntaub ntawv " hais txog kab, lossis kab rov tav pawg ntawm cov cim teb cov ntaub ntawv.

Cov ntaub ntawv txhais li cas hauv database?

Cov ntaub ntawv yog khaws cia rau hauv cov ntaub ntawv . A ntaub ntawv yog tsim los ntawm cov teb thiab muaj tag nrho cov ntaub ntawv hais txog ib tus neeg, tuam txhab, lossis cov khoom hauv a database . Hauv no database , a sau tseg muaj cov ntaub ntawv rau ib daim ntawv qhia txog qhov xwm txheej ntawm cov neeg siv khoom. Cov ntaub ntawv tshwm raws li kab hauv database rooj.

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