Tus tsim tawm ETL yuav tsum paub dab tsi?
Tus tsim tawm ETL yuav tsum paub dab tsi?

Video: Tus tsim tawm ETL yuav tsum paub dab tsi?

Video: Tus tsim tawm ETL yuav tsum paub dab tsi?
Video: ET Yaj & Sua Ham - Kev Hlub Txiav Tsis Tau 2024, Kaum ib hlis
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Txhawm rau nkag siab cov ntaub ntawv khaws cia thiab tsim cov tsev khaws khoom tsim qauv, ETL tus tsim tawm yuav tsum muaj kev txawj ntse nrog SQL ntawv /NoSQL databases thiab data mapping. Kuj tseem muaj cov cuab yeej zoo li Hadoop, uas yog ob qho tib si lub moj khaum thiab lub platform siv hauv ETL raws li cov ntaub ntawv sib koom ua ke. Kev paub txog kev txheeb xyuas cov ntaub ntawv.

Tsuas yog li ntawd, ETL tus tsim tawm yog dab tsi?

Ib ETL Tus tsim tawm yog tus kws tshaj lij IT uas tsim cov ntaub ntawv khaws cia rau cov tuam txhab, thiab ua haujlwm los sau cov kab ke nrog cov ntaub ntawv uas yuav tsum tau khaws cia. ETL Developers feem ntau ua haujlwm ua ib feem ntawm pab pawg.

Ib yam li ntawd, dab tsi yog cov txuj ci uas xav tau rau Informatica Developer? 7 Kev txawj ntse txhua tus tsim tawm ETL yuav tsum muaj

  • ETL Cov cuab yeej / Software. ETL Cov neeg tsim tawm pom tseeb xav tau lub cuab yeej los tsim kho.
  • SQL ntawv. SQL, lossis Structured Query Language, yog lub neej ntawm ETL vim nws yog hom lus nrov tshaj plaws.
  • Parameterization.
  • Scripting Lus.
  • Lub koom haum.
  • Muaj tswv yim.
  • Debugging/Kev daws teeb meem.

Ntawm no, ETL tus tsim tawm haujlwm yog dab tsi?

ETL cov neeg tsim khoom yog lub luag hauj lwm rau kev tsim thiab tsim cov ntaub ntawv warehouse thiab tag nrho cov muaj feem xyuam rau extraction, transformation thiab load ntawm cov ntaub ntawv functions nyob rau hauv lub tuam txhab. Tom qab lub hauv paus tau muab tso rau, tus tsim tawm kuj yuav tsum sim lawv cov qauv tsim kom ntseeg tau tias lub kaw lus ua haujlwm zoo.

Qhov txawv ntawm SQL thiab ETL tus tsim tawm yog dab tsi?

SQL ntawv yog ib hom lus los khaws thiab tswj cov ntsiab lus database. ETL yog lub luag haujlwm ntawm kev rho tawm, hloov pauv, thiab thauj cov ntaub ntawv los ntawm ib lossis ntau cov ntaub ntawv rau hauv cov ntaub ntawv, qhov kev hloov pauv tau saib xyuas cov ntaub ntawv kom nws tuaj yeem ua tau zoo nrog. hauv phiaj database.

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