Video: Dab tsi yog qhov siab tshaj hauv cov ntaub ntawv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Piav: A ncov hauv cov ntaub ntawv qhia tau hais tias koj muaj coob tus neeg teb los yog tus nqi siab ntawm ib lub ntsiab lus raws koj x axis. Koj tuaj yeem muaj ntau yam ncov hauv koj cov ntaub ntawv thiab lawv tuaj yeem maj mam lossis ntse. Cov ntaub ntawv uas yog ntau peaked yog cov ntaub ntawv uas muaj ib tug sharper ncov piv rau cov ntaub ntawv nrog ib tug gradual txoj kab nqes.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qhov ncov hauv kev txheeb cais?
Web Service. OECD Kev txheeb cais . Lus Txhais: Ib qho kev soj ntsuam hauv ib qho kev txiav txim tau hais tias yog ncov ” yog tias nws tus nqi ntau dua tus nqi ntawm nws ob qhov kev soj ntsuam nyob sib ze.
Tsis tas li ntawd, dab tsi yog qhov ncov hauv ib qho teeb meem? Muaj ob pawg ntawm dots . Peaks tshwm sim ntawm 73 nti thiab 79 nti. Nws muaj qhov sib txawv ntawm 74 ntiv tes thiab 78 ntiv tes.
Yog li ntawd, dab tsi yog qhov siab tshaj hauv lej?
a ncov yog cov ntaub ntawv ntau tshaj plaws.
Peak tsom xam yog dab tsi?
Cov ncov ntawm lub teeb liab yog qhov pom tau zoo tshaj plaws thiab muaj txiaj ntsig zoo. Thiab vim li ntawd, ncov tsom xam yog ib qho tseem ceeb ntawm kev ua cov teeb liab. Kuv yuav mloog zoo rau ob txoj haujlwm raug-txiav txim siab lub sijhawm ntawm lub teeb liab los ntawm kev ntsuas qhov kev ncua deb ntawm nws ncov thiab nrhiav ncov nyob rau hauv lub suab nrov.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm pab pawg cov ntaub ntawv thiab cov ntaub ntawv tsis yog pawg?
Ob leeg yog cov ntaub ntawv muaj txiaj ntsig ntawm cov ntaub ntawv tab sis qhov sib txawv ntawm lawv yog cov ntaub ntawv tsis muaj ntaub ntawv yog rawdata. Qhov no txhais tau hais tias nws nyuam qhuav tau sau tab sis tsis txheeb rau hauv ib pawg lossis cov chav kawm. Ntawm qhov tod tes, groupeddata yog cov ntaub ntawv uas tau teeb tsa ua pawg los ntawm cov ntaub ntawv nyoos
Qhov siab tshaj plaws ntawm OST cov ntaub ntawv yog dab tsi?
OST cov ntaub ntawv yog Outlook offline cov ntaub ntawv cov ntaub ntawv.Cov ntaub ntawv OST muaj cov ntaub ntawv loj tshaj plaws uas nyob ntawm qhov version ntawm Outlook koj tab tom khiav: Outlook 2010 thiab tom qab txhawb nqa OST cov ntaub ntawv loj txog li tsib caug gigabytes (50GB) Outlook 2007 thiab 2003 thiab ua ntej txhawb OST cov ntaub ntawv loj txog li nees nkaum gigabyte (20GB)
Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv hauv cov ntaub ntawv mining?
Cia peb tham txog yam ntaub ntawv twg tuaj yeem raug mined: Cov ntaub ntawv tiaj tus. Relational Databases. DataWarehouse. Transactional Databases. Multimedia Databases. Spatial Databases. Lub Sijhawm Series Databases. World Wide Web (WWW)
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?
Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj