Cov txheej txheem:
Video: Kuv yuav nrhiav tau kuv txoj kev MongoDB li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov ua ntej txoj kev yog [yuav tsum yog] /data/db phau ntawv , mas if tus folder tsis nyob, mongodb yuav hluav taws los ntawm txoj kev muab rau hauv lub mongodb . conf cov ntaub ntawv.
Yog li ntawd, kuv cov ntaub ntawv MongoDB khaws cia nyob qhov twg?
Los ntawm lub neej ntawd, MongoDB mloog rau kev sib txuas los ntawm cov neeg siv khoom ntawm chaw nres nkoj 27017, thiab khw muag khoom cov ntaub ntawv hauv tus / cov ntaub ntawv /db directory. Hauv Windows, txoj kev no yog nyob rau tus tsav los ntawm qhov koj pib MongoDB . Piv txwv li, yog tias koj tsis qhia meej txog --dbpath, pib a MongoDB server rau tus C: tsav cov khw muag khoom tag nrho cov ntaub ntawv cov ntaub ntawv hauv C: cov ntaub ntawv db ib.
Tsis tas li ntawd, Mongodump khaws cia nyob qhov twg? Los ntawm lub neej ntawd, mongodum khaws cov ntaub ntawv tso tawm hauv cov npe npe pov tseg hauv cov ntawv teev npe ua haujlwm tam sim no. Txhawm rau xa cov ntaub ntawv pov tseg rau cov qauv tsim tawm, qhia "-" tsis yog txoj hauv kev. Sau rau cov qauv tso zis yog tias koj xav tau cov txheej txheem tso zis ua ntej txuag nws, xws li siv gzip los txhawm rau pob pov tseg.
Kuj nug, koj yuav kuaj li cas yog tias koj muaj MongoDB ntsia?
Xyuas MongoDB Version hauv Windows / Linux
- Txhawm rau txheeb xyuas mongodb version siv mongod hais kom ua nrog --version xaiv.
- Ntawm windows koj yuav tau siv tag nrho txoj hauv kev mus rau mongod.exe thiab mongo.exe txhawm rau txheeb xyuas mongodb version, yog tias koj tsis tau teeb tsa MongoDB Path.
- Tab sis yog tias MongoDb Path tau teeb tsa, koj tuaj yeem siv cov lus txib mongod thiab mongo.
Cov ntaub ntawv khaws cia hauv MongoDB li cas?
Hauv MongoDB , cov ntaub ntawv yog khaws cia raws li cov ntaub ntawv. Cov ntaub ntawv no yog khaws cia hauv MongoDB hauv JSON (JavaScript Object Notation) hom ntawv. JSON cov ntaub ntawv txhawb nqa daim teb, yog li cuam tshuam cov ntaub ntawv thiab lis cov ntaub ntawv tuaj yeem yog khaws cia nrog cov ntaub ntawv tsis yog lub rooj sab nraud. JSON yog formatted raws li lub npe / tus nqi khub.
Pom zoo:
Kuv yuav nrhiav tau kuv tus lej nrhiav Australia Post li cas?
Koj tus lej taug qab tuaj yeem pom ntawm barcodeon koj cov khoom, thiab / lossis ntawm daim ntawv tshem tawm
Kuv yuav ua li cas thiaj nrhiav tau txoj kev npaj ua tiav hauv SQL Server Management Studio?
Ntawm SQL Server Management Studio toolbar, nyem Database Engine Query. Koj tseem tuaj yeem qhib cov lus nug uas twb muaj lawm thiab tso saib cov phiaj xwm ua tiav kwv yees los ntawm nyem rau ntawm Open File toolbar khawm thiab nrhiav cov lus nug uas twb muaj lawm. Nkag mus rau cov lus nug uas koj xav kom pom cov phiaj xwm ua tiav tiag tiag
Yuav ua li cas thiaj nrhiav tau kuv qhov kev tshawb nrhiav keeb kwm ntawm opera?
Txhawm rau saib koj cov keeb kwm kev tshawb nrhiav hauvOpera Hauv Opera browser qhov rai, nyem qhovOpera cov ntawv qhia zaub mov khawm nyob rau sab laug sab laug ntawm lub qhov rais thiab xaiv Keeb Kwm los qhibHistory tab. Los yog, siv cov keyboard shortcutCtrl + H
Kuv yuav siv BFS li cas thiaj nrhiav tau txoj kev luv tshaj?
Txhawm rau nrhiav txoj hauv kev luv tshaj plaws, txhua yam koj yuav tsum ua yog pib los ntawm qhov chaw thiab ua qhov dav thawj zaug tshawb nrhiav thiab nres thaum koj pom koj qhov chaw Node. Qhov tsuas yog qhov ntxiv uas koj yuav tsum tau ua yog muaj ib qho array yav dhau los [n] uas yuav khaws cov node dhau los rau txhua qhov ntawm mus xyuas. Cov yav dhau los ntawm qhov chaw tuaj yeem yog null
Yuav ua li cas thiaj nrhiav tau kuv cov keeb kwm kev tshawb nrhiav hauv Google?
Saib thiab tshem tawm kev tshawb nrhiav keeb kwm hauv GoogleChrome Mus saib lub vev xaib keeb kwm hauv Google Chrome, nyem qhib cov ntawv qhia zaub mov? ntawm sab xis saum toj ntawm nws lub qhov rais thiab xaivHistory, tom qab ntawd nyem Keeb Kwm thib ob