Qhov sib txawv tseem ceeb ntawm filesystem thiab database yog tias filesystem tswj tsuas yog kev nkag mus rau lub cev thaum lub database tswj ob lub cev thiab kev nkag mus rau cov ntaub ntawv.
Database thiab File System yog ob txoj hauv kev uas pab khaws, khaws, tswj thiab tswj cov ntaub ntawv. Ob lub tshuab tso cai rau tus neeg siv ua haujlwm nrog cov ntaub ntawv zoo sib xws. Cov Ntaub Ntawv Cov Ntaub Ntawv yog ib qho kev sau ntawm cov ntaub ntawv raw cov ntaub ntawv khaws cia hauv lub hard drive, qhov chaw khaws ntaub ntawv yog npaj rau kev teeb tsa yooj yim, khaws cia thiab khaws cov ntaub ntawv ntau. Hauv lwm lo lus, ib lub database tuav ib pob ntawm cov ntaub ntawv koom nrog feem ntau hauv daim ntawv digital rau ib lossis ntau tus neeg siv. Cov ntawv luv ntawm cov ntaub ntawv yog DB. Nws muaj peev xwm faib DB raws li lawv cov ntsiab lus, xws li cov ntaub ntawv-ntawv nyeem, phau ntawv sau thiab txheeb cais. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias, txawm nyob hauv ib lub database, cov ntaub ntawv yog thaum kawg los yog lub cev khaws cia rau hauv qee cov ntaub ntawv.
Filesystem yog dab tsi?
Raws li tau hais los saum toj no, cov ntaub ntawv ib txwm khaws cov ntaub ntawv hluav taws xob hauv cov ntaub ntawv. Yog tias cov ntaub ntawv tsuas muaj ib cov ntaub ntawv xwb, ces nws yog cov ntaub ntawv tiaj tus. Lawv muaj qhov tseem ceeb hauv txhua kab sib cais nrog tus lej tshwj xeeb xws li commas. Txhawm rau nug qee cov ntaub ntawv random, ua ntej, nws yog qhov yuav tsum tau txheeb xyuas txhua kab thiab thauj mus rau ib qho array ntawm runtime. Yuav kom ua tiav qhov no, cov ntaub ntawv yuav tsum tau nyeem ua ntu zus vim tias tsis muaj kev tswj hwm hauv cov ntaub ntawv. Yog li ntawd, nws tsis muaj txiaj ntsig thiab siv sijhawm.
Daim duab 01: Cov ntaub ntawv
Muaj qee lub nra ntawm tus neeg siv xws li nrhiav cov ntaub ntawv tsim nyog, mus dhau cov ntaub ntawv los ntawm kab, tshuaj xyuas qhov muaj nyob ntawm qee cov ntaub ntawv thiab nco ntsoov cov ntaub ntawv / cov ntaub ntawv hloov kho. Tus neeg siv yuav tsum ua txhua txoj haujlwm manually lossis yuav tsum tau sau ib tsab ntawv uas ua rau lawv tau txais kev pab los ntawm kev tswj cov ntaub ntawv muaj peev xwm ntawm lub operating system. Vim yog cov laj thawj no, Cov Ntaub Ntawv Cov Ntaub Ntawv tau yooj yim rau cov teeb meem loj xws li kev tsis sib xws, tsis muaj peev xwm tswj tau qhov sib xws, cov ntaub ntawv cais tawm, kev hem thawj rau kev ncaj ncees thiab tsis muaj kev ruaj ntseg.
Database yog dab tsi?
A Database tej zaum yuav muaj ntau theem ntawm abstraction hauv nws cov architecture. Feem ntau, peb theem: sab nraud, tswv yim thiab sab hauv tsim cov database architecture. Sab nrauv theem txhais li cas cov neeg siv saib cov ntaub ntawv. Ib lub database tuaj yeem muaj ntau qhov kev pom. Cov theem sab hauv txhais tau li cas cov ntaub ntawv khaws cia hauv lub cev. Lub tswv yim theem yog kev sib txuas lus nruab nrab ntawm cov theem sab hauv thiab sab nraud. Nws muab qhov pom tshwj xeeb ntawm cov ntaub ntawv tsis hais nws yuav khaws lossis saib li cas.
Daim duab 02: Database
Muaj ntau hom databases xws li Analytical databases, Data warehouses and Distributed Databases. Cov ntaub ntawv los yog kom meej meej, cov ntaub ntawv sib raug zoo muaj cov rooj, thiab lawv muaj cov kab thiab kab, zoo li cov ntawv nthuav dav hauv Excel. Txhua kab sib raug rau tus cwj pwm thaum txhua kab sawv cev rau ib cov ntaub ntawv. Piv txwv li, hauv cov ntaub ntawv khaws cia cov neeg ua haujlwm cov ntaub ntawv ntawm lub tuam txhab, cov kab ntawv tuaj yeem muaj cov neeg ua haujlwm npe, tus neeg ua haujlwm ID thiab nyiaj hli, thaum ib kab sawv cev rau ib tus neeg ua haujlwm. Feem ntau cov databases tuaj nrog Database Management System (DBMS) uas ua rau nws yooj yim heev los tsim, tswj thiab teeb tsa cov ntaub ntawv.
Dab tsi yog qhov txawv ntawm Filesystem thiab Database?
Cov qauv ntawm lub kaw lus yog qhov yooj yim thaum cov qauv ntawm cov ntaub ntawv yog qhov nyuaj. Tsis tas li ntawd, qhov redundancy nyob rau hauv filesystem yog siab tshaj ntawm ib tug database. Cov ntaub ntawv nyob rau hauv ib tug filesystem yuav tsis sib haum. Thaum cov ntaub ntawv nyob hauv ntau qhov chaw thiab yog tias nws yuav tsum tau hloov pauv, ces yuav tsum tau kuaj xyuas tag nrho cov kab ke kom hloov kho. Hauv ib lub database, nws tsuas yog tsim nyog los ua ib zaug hloov tshiab. Lwm cov ntaub ntawv yuav hloov kho kom raug. Yog li ntawd, lub database tswj cov ntaub ntawv sib xws. Txawm tias feem ntau cov kev khiav hauj lwm systems muab graphical user interfaces; cov ntaub ntawv kaw lus ua haujlwm feem ntau xws li khaws cia, khaws thiab tshawb nrhiav manually. Tab sis ib lub database muab cov txheej txheem automated los ua kom tiav cov haujlwm no.
Ntxiv mus, cov ntaub ntawv sib qhia yog qhov nyuaj hauv lub kaw lus vim tias tus neeg siv yuav tsum nrhiav qhov chaw ntawm cov ntaub ntawv thiab lwm yam tab sis nws yog ib qho yooj yim txheej txheem thaum siv cov ntaub ntawv. Tsis tas li ntawd, lub filesystem tsis ruaj ntseg heev. Yog li ntawd, nws tuaj yeem ua rau cov ntaub ntawv puas. Ntawm qhov tod tes, siv cov ntaub ntawv database muaj kev nyab xeeb dua. Tsis zoo li lub kaw lus, cov ntaub ntawv khaws cia muab thaub qab thiab rov qab thaum xav tau.
Summary – Filesystem vs Database
Nyob rau hauv luv luv, hauv File System, cov ntaub ntawv tso cai khaws cov ntaub ntawv thaum lub database yog ib qho kev sau cov ntaub ntawv. Txawm hais tias File System thiab databases yog ob txoj hauv kev los tswj cov ntaub ntawv, databases muaj ntau yam zoo dua File Systems. Cov ntaub ntawv System ua rau muaj teeb meem xws li cov ntaub ntawv kev ncaj ncees, cov ntaub ntawv tsis sib xws thiab cov ntaub ntawv kev ruaj ntseg, tab sis lub database zam cov teeb meem no. Tsis zoo li cov ntaub ntawv System, cov ntaub ntawv siv tau zoo vim tsis tas nyeem kab los ntawm kab, thiab qee qhov kev tswj hwm hauv qhov chaw. Qhov sib txawv ntawm filesystem thiab database yog tias filesystem tswj tsuas yog kev nkag mus rau lub cev thaum lub database tswj ob lub cev thiab kev nkag mus rau cov ntaub ntawv.
