Video: AWS Glue ua dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
AWS Glue ib tug tag nrho tswj extract, transform, thiab load (ETL) kev pab cuam uas ua rau nws yooj yim rau cov neeg muas zaub los npaj thiab thauj lawv cov ntaub ntawv rau analytics. Koj tuaj yeem tsim thiab ua haujlwm ETL nrog ob peb nias hauv AWS Management Console.
Ua li no, siv cov kua nplaum AWS yog dab tsi?
AWS Glue yog ib qho kev tswj xyuas tag nrho, hloov pauv, thiab thauj khoom (ETL) kev pabcuam uas koj tuaj yeem ua tau siv kom catalog koj cov ntaub ntawv, ntxuav nws, ntxiv dag zog rau nws, thiab txav mus los ntawm cov ntaub ntawv khaws cia.
Tom qab, lo lus nug yog, yog AWS kua nplaum kim? Los ntawm lub neej ntawd, AWS Glue faib 5 DPUs rau txhua qhov kawg ntawm kev txhim kho. Koj raug nqi $0.44 ib DPU-Hour nyob rau hauv increments ntawm 1 thib ob, sib npaug mus rau qhov ze thib ob, nrog rau 10-feeb yam tsawg kawg nkaus lub sij hawm rau txhua qhov kev tsim kho qhov kawg.
Tsis tas li ntawd, puas yog AWS kua nplaum zoo?
AWS Glue yog ETL tswj tag nrho (extract, transform, and load) cov kev pab cuam uas ua rau nws yooj yim thiab nqi-zoo los categorize koj cov ntaub ntawv, ntxuav nws, enrich nws, thiab txav nws ntseeg siab ntawm ntau yam ntaub ntawv khw.
AWS Glue crawler ua haujlwm li cas?
AWS Glue crawler yog siv los txuas mus rau cov ntaub ntawv khaws cia, kev nce qib ua tiav los ntawm cov npe tseem ceeb ntawm cov kev faib tawm siv los rho tawm cov schema ntawm cov ntaub ntawv thiab lwm yam kev txheeb cais, thiab inturn populate lub Kua nplaum Cov ntaub ntawv Catalog nrog kev pab los ntawm cov metadata.
Pom zoo:
Dab tsi yog qhov hloov tshiab thiab tso cov lus nug ua dab tsi?
Qhov tsim nyog syntax thiab siv cov lus txib no yog raws li hauv qab no. INSERT: → ntxig yog cov lus txib hauv oracle SQL uas yog siv los ntxig cov ntaub ntawv rau hauv lub rooj. Hloov tshiab: → Hloov tshiab yog siv los hloov cov ntaub ntawv qub / cov ntaub ntawv nrog cov ntaub ntawv tshiab. DROP: → Drop yog siv los tshem tawm tag nrho cov lus los ntawm cov ntaub ntawv nrog lub rooj
W3c yog dab tsi Whatwg yog dab tsi?
Lub Web Hypertext Application Technology Working Group (WHATWG) yog ib lub zej zog ntawm cov neeg nyiam hloov kho HTML thiab lwm yam technologies. WHATWG tau tsim los ntawm cov tib neeg los ntawm Apple Inc., Mozilla Foundation thiab Opera Software, ua tus neeg muag khoom Web browser, hauv 2004
Dab tsi yog qhov cuam tshuam ntawm ib yam dab tsi?
Cov nyhuv feem ntau yog siv los ua lub ntsiab lus ntawm qhov tshwm sim lossis cuam tshuam ntawm ib yam dab tsi, qhov tshwm sim. Yog tias muaj 'a/an/the' nyob rau hauv pem hauv ntej ntawm nws, nws yog ib qho nyhuv
Cell referencing yog dab tsi thiab dab tsi yog qhov sib txawv ntawm kev xa tawm?
Muaj ob hom kev siv ntawm tes: txheeb ze thiab tsis meej. Cov txheeb ze thiab cov ntawv pov thawj tseeb coj txawv txawv thaum theej thiab sau rau lwm lub hlwb.Cov ntaub ntawv txheeb ze hloov thaum tus qauv raug theej rau lwm lub xovtooj. Cov ntaub ntawv tseeb, ntawm qhov tod tes, tseem nyob tas li txawm tias lawv tau theej qhov twg
Glue crawler ua haujlwm li cas?
2 Teb. Lub CRAWLER tsim cov metadata uas tso cai rau GLUE thiab cov kev pabcuam xws li ATHENA los saib cov ntaub ntawv S3 ua cov ntaub ntawv nrog cov ntxhuav. Ntawd yog, nws tso cai rau koj los tsim cov Kua Catalog. Txoj kev no koj tuaj yeem pom cov ntaub ntawv uas s3 muaj raws li cov ntaub ntawv muaj li ntawm ntau lub rooj