Video: Ntev npaum li cas cov ntaub ntawv tuaj yeem khaws cia hauv cov ntaub ntawv warehouse?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
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Yog li ntawd, cov ntaub ntawv khaws cia hauv lub tsev khaws ntaub ntawv li cas?
Cov ntaub ntawv yog feem ntau khaws cia rau hauv ib lub tsev khaws ntaub ntawv los ntawm cov txheej txheem rho tawm, hloov pauv thiab thauj khoom (ETL), qhov twg cov ntaub ntawv tau muab rho tawm los ntawm qhov chaw, hloov mus rau qhov zoo cov ntaub ntawv thiab ces loaded rau hauv ib lub tsev khaws khoom.
Qhov thib ob, cov ntaub ntawv warehouses ua haujlwm li cas? A cov ntaub ntawv warehouse ua haujlwm los ntawm kev teeb tsa cov ntaub ntawv nyob rau hauv ib tug schema uas piav txog lub layout thiab hom ntawm cov ntaub ntawv , xws li integer, cov ntaub ntawv teb, los yog hlua. Thaum twg cov ntaub ntawv yog ingested, nws yog khaws cia nyob rau hauv ntau lub rooj piav qhia los ntawm lub schema. Cov cuab yeej nug siv cov schema los txiav txim qhov twg cov ntaub ntawv cov rooj mus saib thiab txheeb xyuas.
Xav txog qhov no, dab tsi yog lub tsev khaws ntaub ntawv siv rau?
Cov ntaub ntawv warehouses yog siv rau tsom xam lub hom phiaj thiab kev tshaj tawm kev lag luam. Cov ntaub ntawv warehouses feem ntau khaws cov keeb kwm cov ntaub ntawv los ntawm kev koom ua ke cov ntawv luam ntawm kev sib pauv cov ntaub ntawv los ntawm qhov chaw sib txawv. Cov ntaub ntawv warehouses kuj tuaj yeem siv sijhawm tiag tiag cov ntaub ntawv pub rau cov ntawv ceeb toom uas siv cov ntaub ntawv tam sim no, sib xyaw ua ke.
Cov ntaub ntawv khaws cia nrog piv txwv yog dab tsi?
A cov ntaub ntawv warehouse Qhov tseem ceeb muab cov ntaub ntawv los ntawm ntau qhov chaw rau hauv ib qho kev qhia dav dav. Rau piv txwv , hauv ntiaj teb kev lag luam, a cov ntaub ntawv warehouse tej zaum yuav suav nrog cov neeg siv khoom cov ntaub ntawv los ntawm lub tuam txhab cov khoom muag (cov ntawv sau nyiaj ntsuab), nws lub vev xaib, nws cov npe xa ntawv thiab nws cov ntawv teev lus.
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