Video: Postgres ceev npaum li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Yog tias koj tsuas yog lim cov ntaub ntawv thiab cov ntaub ntawv haum rau hauv lub cim xeeb, Postgres muaj peev xwm parsing kwv yees li 5-10 lab kab ib ob (xav tias qee qhov tsim nyog kab loj ntawm hais 100 bytes). Yog tias koj sib sau ua ke ces koj nyob ntawm li 1-2 lab kab ib ob.
Ntawm no, yog PostgreSQL sai dua MySQL?
Database Performance Nws tau tsim los ua kom muaj txiaj ntsig zoo, txuas ntxiv tau thiab cov qauv ua raws. Yav tag los, Postgres kev ua tau zoo yog sib npaug - nyeem feem ntau qeeb tshaj MySQL , tab sis nws muaj peev xwm sau tau cov ntaub ntawv ntau ntau tau zoo dua, thiab nws ua haujlwm zoo dua.
Qhov thib ob, yog Postgres sai dua SQLite? SQLite 2.7. 6 yog qhov tseem ceeb sai dua (qee zaum ntau li 10 lossis 20 zaug sai dua ) tshaj lub neej ntawd PostgreSQL 7.1. 3 kev teeb tsa ntawm RedHat 7.2 rau kev ua haujlwm feem ntau.
Ntxiv mus, yog MongoDB sai dua PostgreSQL?
Cov Postgres database tswj system (DBMS) ntsuas ntawm 4 thiab 15 zaug sai dua MongoDB hauv kev ntsuas kev ua haujlwm ntawm kev lag luam.
Postgres tau sau ntau npaum li cas ib ob?
Qhov tseeb, ib qho sau Nyob rau hauv lub rotating disk yog nyob rau hauv qhov kev txiav txim ntawm magnitude ntawm 10 ms (tus naj npawb yog 8 ms). Qhov no txhais tau tias me ntsis ntau tshaj 100 sau ib ob , Yog koj yog sau ntawv tib txoj hauj lwm hauv disk, uas yog qhov khib heev rau cov ntaub ntawv.
Pom zoo:
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