2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
DynamoDB txhawb nqa atomic counters, qhov twg koj siv txoj kev hloov tshiab los nce lossis txo tus nqi ntawm tus cwj pwm uas twb muaj lawm yam tsis cuam tshuam nrog lwm cov ntawv thov. (Tag nrho cov ntawv thov raug siv rau hauv qhov kev txiav txim uas lawv tau txais.)
DynamoDB sau rau hauv dab tsi?
Hloov chaw, nws siv tus tswv API raws li JavaScript Object Notation (JSON). Qhov API no feem ntau tsis hu ncaj qha los ntawm cov neeg siv tsim tawm, tab sis tau hu los ntawm AWS Software Developer Kits (SDKs) rau DynamoDB sau ua ntau hom lus programming (C++, Go, Java, JavaScript, Microsoft. NET, Node.
Puas yog DynamoDB txhawb rau qhov hloov tshiab atomic?
Amazon DynamoDB txhawb ceev hauv qhov chaw atomic hloov tshiab, qhov twg tus lej tus lej nce thiab txo qis tuaj yeem ua tiav hauv xub siv ib qho API hu lossis zoo sib xws, koj tuaj yeem ntxiv lossis tshem tawm teeb, teev, lossis maps.
hom database yog DynamoDB?
Amazon DynamoDB yog tus nqi tseem ceeb thiab cov ntaub ntawv database uas xa ib tus lej millisecond kev ua tau zoo ntawm txhua qhov teev. Nws yog kev tswj hwm tag nrho, ntau thaj tsam, ntau lub zog, ruaj khov database nrog kev ruaj ntseg tsim, thaub qab thiab rov qab, thiab hauv-nco caching rau kev siv internet-scale.
Puas DynamoDB sau zoo ib yam?
DynamoDB txhawb nqa nws thiaj li zoo ib yam thiab muaj zog nyeem ntawv. Thaum twgkoj nyeem cov ntaub ntawv los ntawm lub rooj DynamoDB, cov lus teb yuav tsis cuam tshuam cov txiaj ntsig ntawm kev sau ntawv ua tiav tsis ntev los no. … Yog tias koj rov nyeem koj daim ntawv thov tom qab lub sijhawm luv luv, cov lus teb yuav tsum rov qab cov ntaub ntawv tshiab kawg.
Pom zoo:
Puas yog atomic orbitals hybridization?
Nyob hauv chemistry, orbital hybridisation (los yog hybridization) yog tswvyim ntawm kev sib xyaw atomic orbitals los tsim tshiabhybrid orbitals (nrog sib txawv zog, duab, thiab lwm yam., dua li cov khoom siv atomic. orbitals) haum rau kev sib txuas ntawm cov hluav taws xob los tsim cov tshuaj lom neeg hauv valence bond theory.
Puas yog hybridization atomic orbitals?
In chemistry, orbital hybridisation (los yog hybridization) yog lub tswv yim ntawm kev sib xyaw atomic orbitals los tsim tshiabhybrid orbitals (nrog lub zog sib txawv, duab, thiab lwm yam., dua li cov khoom siv atomic. orbitals) haum rau kev sib txuas ntawm cov hluav taws xob los tsim cov tshuaj lom neeg hauv valence bond theory.
Cov neeg sau ntawv sau npe nrhiav dab tsi ntawm cov ntawv sau se?
Cov neeg sau ntawv feem ntau yuav tsum tau thov cov ntawv sau se rov qab los ntawm IRS kom paub meej tias tus neeg siv nyiaj tshuav nyiaj li cas rau IRS thiab seb qhov kev npaj them nqi puas nyob hauv. … “Yog tias muaj txoj kev npaj them nqi, feem ntau peb yuav tsum tau txheeb xyuas yam tsawg kawg peb lub hlis ntawm qhov tau txais,” nws hais ntxiv.
Puas yog cov ntaub ntawv sau atomic?
Ua ntej, O_APPEND lossis qhov sib npaug FILE_APPEND_DATA ntawm Windows txhais tau tias increments ntawm qhov siab tshaj plaws ntawm cov ntaub ntawv (cov ntaub ntawv "ntev") yog atomic nyob rau hauv cov neeg sau ntawv. Qhov no tau lees paub los ntawm POSIX, thiab Linux, FreeBSD, OS X thiab Windows tag nrho siv nws kom raug.
Puas yog oppenheimer khuv xim lub foob pob atomic?
Openheimer ntseeg tias nws muaj ntshav ntawm nws txhais tes rau nws lub luag haujlwm hauv kev tsim lub foob pob atomic. … Thaum nws tawm tsam H-pob zeb thiab tu siab rau nws lub luag haujlwm yog "txiv ntawm lub foob pob atomic", Oppenheimer tus kheej kev coj ncaj ncees yog qhov nyuaj heev thiab tsis hais los ntawm ib qho kev ntseeg lossis kab lis kev cai.
