Video: Qhov txawv ntawm AWS RDS thiab Aurora yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Amazon Aurora txhawb ob hom replicas. Amazon Aurora replicas qhia tib lub hauv paus ntim raws li thawj piv txwv. Kev hloov kho tshiab los ntawm thawj qhov piv txwv yog pom rau txhua tus Amazon Aurora cov khoom qub. Los ntawm qhov sib txawv, RDS tso cai tsuas yog tsib replicas, thiab cov txheej txheem replication yog qeeb dua Amazon Aurora.
Yog li ntawd, kuv yuav tsum siv AWS Aurora?
Aurora kev ua tau zoo yog qhov zoo tab sis tsis yog ntau npaum li qhov xav tau rau kev sau ntawv ua haujlwm hnyav thaum muaj qhov ntsuas thib ob. Txawm li cas los xij, koj yuav tsum benchmark ob qho tib si RDS MySQL thiab Aurora ua ntej txiav txim siab tsiv teb tsaws chaw. Kev ua tau zoo nyob ntawm ntau yam ntawm kev ua haujlwm thiab schema tsim.
Qhov thib ob, kuv yuav tsum siv RDS lossis ec2? RDS yog ib qho yooj yim rau kev teeb tsa, raug nqi thiab tso cai rau koj tsom mus rau cov haujlwm tseem ceeb dua. Txawm li cas los xij, EC 2 muaj kev tswj kom tiav thiab yooj yim rau koj SQL Server database. RDS tso cai rau koj tsom mus rau cov haujlwm tseem ceeb xws li kev ua haujlwm tu thiab schema optimization ntawm koj cov ntaub ntawv.
Ib yam li ib tug yuav nug, AWS RDS Aurora yog dab tsi?
Amazon Aurora yog MySQL thiab PostgreSQL-tshaj kev sib raug zoo database tsim rau huab, uas sib txuas cov kev ua tau zoo thiab muaj cov ntaub ntawv lag luam ib txwm muaj nrog kev yooj yim thiab tus nqi ntawm cov ntaub ntawv qhib.
Puas yog Aurora siv EBS?
Amazon EBS : Thaiv theem cia ntim rau siv nrog Amazon EC2 piv txwv. Amazon Aurora yog MySQL-tshaj, kev sib raug zoo database cav uas sib txuas ceev thiab muaj cov ntaub ntawv lag luam siab kawg nrog kev yooj yim thiab tus nqi ntawm cov ntaub ntawv qhib.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov sib txawv hauv zos thiab thoob ntiaj teb hauv SQL Server?
Qhov sib txawv hauv zos tau tshaj tawm hauv ib qho kev ua haujlwm whereas Ntiaj teb hloov pauv tau tshaj tawm sab nraum lub luag haujlwm. Cov kev hloov hauv zos tau tsim thaum lub luag haujlwm tau pib ua tiav thiab ploj thaum lub luag haujlwm xaus, ntawm qhov tod tes, Ntiaj teb hloov pauv yog tsim raws li kev tua pib thiab ploj thaum qhov kev pab cuam xaus
Dab tsi yog qhov sib txawv ntawm lub thawv thiab lub thawv ntawv thiab lub thawv ntawv yog dab tsi?
Ib lub thawv thiab cov ntawv nplawm (qee zaum hu ua boxplot) yog ib daim duab uas nthuav tawm cov ntaub ntawv los ntawm tsib lub ntsiab lus. Nyob rau hauv ib lub thawv thiab whisker zajlus: qhov kawg ntawm lub thawv yog lub sab sauv thiab sab quartiles, yog li lub thawv spans lub interquartile ntau yam. qhov nruab nrab yog cim los ntawm ib txoj kab ntsug hauv lub thawv
Dab tsi yog qhov txawv ntawm cov ntaub ntawv hom thiab qhov sib txawv?
Ib qho kev sib txawv yuav tsum muaj cov ntaub ntawv sib txuas nrog nws, piv txwv li nws tuaj yeem muaj cov ntaub ntawv xws li cov lej, lej lej, cov cim thiab lwm yam. Qhov sib txawv ntawm hom Integer khaws cov lej suav thiab tus cim typevariable khaws cov cim tus nqi. Thawj qhov sib txawv ntawm ntau hom ntaub ntawv yog lawv qhov loj me me
Dab tsi yog qhov zoo sib xws thiab qhov txawv ntawm relays thiab PLC yog dab tsi?
Relays yog electro-mechanical keyboards uas muaj coil thiab ob hom kev sib cuag uas tsis yog NO & NC. Tab sis Programmable Logic Controller, PLC yog lub khoos phis tawj me uas tuaj yeem txiav txim siab raws li qhov kev zov me nyuam thiab nws cov tswv yim & tso tawm
Dab tsi yog qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov ntsuas thib ob?
Primary index: nyob rau hauv ib tug sequentially order file, qhov Performance index uas nws search key qhia cov sequential order ntawm cov ntaub ntawv. Kuj hu ua clustering index. Secondary index: ib qho Performance index uas nws qhov tseem ceeb tshawb nrhiav qhia qhov kev txiav txim sib txawv ntawm qhov kev txiav txim ntawm cov ntaub ntawv. Kuj hu ua non-clustering index