Video: Dab tsi yog qhov zoo ntawm kev siv cov ntaub ntawv sib raug zoo?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Qhov zoo ntawm kev sib raug zoo qauv yog simplicity, kev ywj pheej ntawm cov qauv, yooj yim ntawm kev siv, kev nug muaj peev xwm, cov ntaub ntawv ywj pheej, scalability. Tsawg kev sib txheeb databases muaj kev txwv ntawm qhov ntev uas tsis tuaj yeem tshaj.
Xav txog qhov no, dab tsi yog qhov zoo ntawm kev sib raug zoo database?
Lub ntsiab qhov zoo ntawm kev sib txheeb databases yog tias lawv pab kom cov neeg siv tau yooj yim categorize thiab khaws cov ntaub ntawv tom qab tuaj yeem nug thiab lim kom rho tawm cov ntaub ntawv tshwj xeeb rau cov ntawv ceeb toom. Relational databases kuj yog ib qho yooj yim mus txuas ntxiv thiab tsis tso siab rau lub koom haum lub cev.
Qhov thib ob, qhov zoo li cas Rdbms muaj rau Lub Koom Haum? Muaj ob peb qhov zoo ntawm database tswj systems. Qhov tseem ceeb ntawm lawv yog cov ntaub ntawv redundancy thiab sib xws, kev sib faib cov ntaub ntawv, kev txwv kev ncaj ncees, thiab kev ruaj ntseg ntau dua.
Kuj nug, dab tsi yog qhov tsis zoo ntawm kev sib raug zoo database?
Ib qhov tsis zoo ntawm kev sib raug zoo databases yog kim ntawm kev teeb tsa thiab tswj cov database qhov system. Txhawm rau teeb tsa a kev sib txheeb database , feem ntau koj yuav tsum tau yuav cov software tshwj xeeb. Yog tias koj tsis yog tus programmer, koj tuaj yeem siv ntau yam khoom los teeb tsa kev sib txheeb database.
Lub hom phiaj ntawm kev sib raug zoo database yog dab tsi?
A kev sib txheeb database yog ib qho uas muaj cov lus nug nyuaj heev thiab cov lus nug thiab kev tshawb fawb ua tsaug rau ob yam: rooj thiab kev sib tham sib tham. Nws khaws cov ntaub ntawv raws li cov ntxhuav es tsis yog cov npe dawb, ua kom yooj yim los lim cov ntsiab lus ntawm txhua cov ntaub ntawv.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv sib sau ua ke thiab cov ntaub ntawv tsis sib xws?
Kev sib sau cov ntaub ntawv yog sau thiab sau cov ntaub ntawv; kom disaggregate cov ntaub ntawv yog rhuav tshem cov ntaub ntawv sib sau ua ke rau hauv cov khoom siv lossis cov ntaub ntawv me me
Puas txhais tau tias yog kev sib raug zoo ntawm cov khoom ntawm ib yam khoom thiab lub peev xwm ntawm tus neeg sawv cev uas muab cov lus qhia rau kev siv cov khoom?
Kev them nyiaj yog kev sib raug zoo ntawm cov khoom ntawm ib yam khoom thiab lub peev xwm ntawm tus neeg sawv cev uas txiav txim siab seb qhov khoom siv tau li cas
Dab tsi yog tus lej ncaj qha uas yuav tsum raug tshem tawm ntawm cov ntaub ntawv tshawb fawb kom ua raws li kev siv cov ntaub ntawv txwv?
Cov ntaub ntawv qhia ncaj qha hauv qab no yuav tsum raug tshem tawm rau PHI kom tsim nyog raws li cov ntaub ntawv txwv: (1) Cov npe; (2) Cov ntaub ntawv chaw nyob xa ntawv, tsis yog lub nroog lossis nroog, xeev, thiab ZIP code; (3) xov tooj; (4) fax xov tooj; (5) email chaw nyob; (6) social security naj npawb; (7) cov ntaub ntawv kho mob; (8) kev npaj kho mob
Dab tsi yog qhov txawv ntawm kev sib raug zoo unary kev sib raug zoo binary thiab kev sib raug zoo ternary?
Kev sib raug zoo tsis sib xws yog thaum ob tus neeg koom hauv kev sib raug zoo yog tib lub koom haum. Piv txwv li: Cov ncauj lus yuav yog qhov yuav tsum tau ua ua ntej rau lwm yam kev kawm. Kev sib raug zoo ternary yog thaum peb lub koom haum koom nrog kev sib raug zoo
Dab tsi yog qhov txawv ntawm kev sib raug zoo thiab tsis muaj kev sib raug zoo databases?
Qhov sib txawv loj ntawm lawv yog li cas lawv tuav cov ntaub ntawv. Relational databases are structured.Non-relational databases are document-oriented. Qhov no hu ua cov ntaub ntawv hom cia tso cai ntau 'qeb' ntawm cov ntaub ntawv khaws cia hauv ib qho kev tsim lossis Cov Ntaub Ntawv