Video: Dab tsi yog qhov tseem ceeb muab faib hauv Dynamo DB?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Muab faib key - Ib qho yooj yim thawj tus yuam sij , tsim los ntawm ib tug cwj pwm hu ua muab faib key . DynamoDB siv cov muab faib key tus nqi raws li kev nkag mus rau hauv lub hash muaj nuj nqi. Cov zis tawm los ntawm hash muaj nuj nqi txiav txim siab muab faib (lub cev cia sab hauv rau DynamoDB ) uas cov khoom yuav raug khaws cia.
Kuj paub yog, DynamoDB muab faib key yog dab tsi?
Muab faib Key - Qhov no yooj yim thawj tus yuam sij muaj ib tus cwj pwm hu ua " muab faib key ” Sab hauv, DynamoDB siv cov tus yuam sij tus nqi raws li input rau hash muaj nuj nqi los txiav txim cia. Muab faib Key thiab Sib Ntsiab - Qhov no tus yuam sij , hu ua "Composite Primary Ntsiab ”, muaj ob yam ntxwv.
Kuj Paub, Dynamo DB ua haujlwm li cas? Amazon DynamoDB yog ib tug tswj, NoSQL database kev pabcuam Nrog cov kev pabcuam tswj hwm, cov neeg siv tsuas yog cuam tshuam nrog kev khiav haujlwm ntawm nws tus kheej. Tus qauv muab-throughput uas nyeem thiab sau ntawv tuaj yeem hloov kho txhua lub sijhawm raws li kev siv tiag tiag. Cov ntaub ntawv thaub qab mus rau S3.
Hauv qhov no, qhov tseem ceeb muab faib yog dab tsi?
Cov muab faib key muaj ib lossis ntau kab uas txiav txim siab qhov muab faib qhov twg txhua kab yog khaws cia. Oracle tau ncaj qha ntxig, hloov kho, thiab rho tawm haujlwm rau qhov tsim nyog muab faib nrog rau muab faib key.
Dab tsi yog qhov tseem ceeb thiab faib hauv DynamoDB?
Cov muab faib key yog siv rau muab faib cov ntaub ntawv. Cov ntaub ntawv nrog tib yam muab faib key yog khaws cia ua ke, uas tso cai rau koj los nug cov ntaub ntawv nrog tib yam muab faib key hauv 1 lus nug. Qhov (optional) yam key txiav txim qhov kev txiav txim ntawm yuav ua li cas cov ntaub ntawv nrog tib yam muab faib key yog khaws cia.
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