Video: Puas yog lub koom haum yog lub rooj?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov ntaub ntawv khaws cia hauv koj li rooj , thaum retrieved thiab hloov dua siab tshiab rau hauv ib yam khoom, ces yog ib lub koom haum . Nyob rau hauv ib tug database qhov chaw yog a rooj . Cov rooj sawv cev rau txhua lub tswv yim hauv ntiaj teb tiag tiag uas koj tab tom sim ua qauv (tus neeg, kev lag luam, kev tshwm sim). Contraints tuaj yeem sawv cev kev sib raug zoo ntawm cov koom haum.
Ua li no, qhov txawv ntawm ib qho chaw thiab lub rooj yog dab tsi?
Thawj qhov sib txawv ntawm qhov chaw thiab table hauv a database, yog qhov ntawd qhov chaw tsis muaj nyob hauv a database los yog hauv SQL. Nws yog conceptual. Yog ib rooj yog lub cev tsim hauv a database thiab SQL. Ib txhia cov koom haum tuaj yeem paub daws teeb meem thiab tsis tau hloov dua siab tshiab rau hauv rooj.
Ib yam li ntawd, qhov piv txwv ntawm ib lub koom haum yog dab tsi? Piv txwv ntawm ib qho chaw yog ib tus neeg, ib yam khoom, lossis ib lub koom haum. Qhov chaw hom. Ib tug neeg, lub koom haum, hom khoom, lossis lub tswv yim txog cov ntaub ntawv twg yog khaws cia.
Cov lus nug tseem yog, qhov chaw yog dab tsi?
Ib qhov chaw yog ib qho lus, txheeb xyuas tau thiab cais cov khoom. Nws hais txog cov tib neeg, cov koom haum, cov kab ke, cov ntaub ntawv me me lossis txawm tias cov kab ke sib txawv uas suav tias yog qhov tseem ceeb hauv thiab ntawm lawv tus kheej.
Dab tsi yog qhov chaw nyob hauv database?
Lesson Summary Ib qhov chaw yog ib yam khoom hais txog cov ntaub ntawv yuav tsum tau ntes. Cov yam ntxwv ntawm ib qhov chaw ntxiv txhais cov ntaub ntawv khaws cia. Rau database kev ua tau zoo, qee tus cwj pwm ua cov koom haum . Cov koom haum kuj tau koom ua ke hauv kev sib raug zoo. Ib hom tseem ceeb yog tus yuam sij.
Pom zoo:
Lub koom haum twg tseem hu ua lub koom haum virtual?
A) Lub koom haum virtual qee zaum hu ua matrix lub koom haum
Ib lub koom haum puas yuav tsum muaj tus yuam sij?
Txhua qhov chaw yuav tsum muaj tus cwj pwm lossis tus cwj pwm, tus yuam sij tseem ceeb, uas nws qhov tseem ceeb txheeb xyuas txhua qhov piv txwv ntawm qhov chaw. Txhua lub koom haum me nyuam yuav tsum muaj tus cwj pwm, tus yuam sij txawv teb chaws, uas ua tiav kev koom tes nrog niam txiv lub koom haum
Kuv yuav ntxiv ib lub rooj tshiab li cas rau ib lub koom haum uas twb muaj lawm?
2 Cov Lus Teb Txoj nyem rau ntawm qhov chaw khoob ntawm Qhov Chaw Cov Ntaub Ntawv Tus Qauv Tsim Qauv. Nyem rau ntawm Hloov Hloov Qauv Los ntawm Database xaiv. Tam sim no koj sab laug nrog Hloov Wizard, uas muaj 3 txoj kev xaiv ntxiv, refresh thiab rho tawm cov ntxhuav. nyem rau ntawm Ntxiv kev xaiv. Xaiv lub hom phiaj cov rooj los ntawm txhaj rau ntawm lub npov taw tes ua ntej lub npe
Puas yog lub network ntiag tug hauv ib lub koom haum?
Ib lub network ntiag tug hauv ib lub koom haum uas zoo li hauv Internet. Hom network topology nyob rau hauv uas txhua lub cuab yeej txuas nrog ib qho cable, kuj hu ua lub nraub qaum. Lub network no, tseem hu ua hierarchical network, feem ntau yog siv los qhia cov ntaub ntawv dav dav ntawm cov tuam txhab
Lub koom haum puas siv SAML?
Federated SSO siv cov txheej txheem qhia tus kheej xws li OAuth, WS-Federation, WS-Trust, OPenID thiab SAML kom dhau tokens. Federation muab authentication thiab kev ruaj ntseg nta ntawm ob huab thiab nyob rau hauv daim ntawv thov premise