Cov txheej txheem:
Video: Dab tsi yog Oracle database txheej txheem?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2024-01-18 08:24
Cov txheej txheem keeb kwm yav dhau hauv qhov piv txwv Oracle tuaj yeem suav nrog cov hauv qab no:
- Database Writer Process (DBWn)
- Log Writer Process (LGWR)
- Cov txheej txheem kuaj xyuas (CKPT)
- Txheej Txheem Saib Xyuas Txheej Txheem (SMON)
- Txheej Txheem Saib Xyuas Txheej Txheem (PMON)
- Cov txheej txheem rov qab (RECO)
- Cov Txheej Txheem Ua Haujlwm .
- Cov txheej txheem Archiver (ARCn)
Tom qab ntawd, cov txheej txheem Oracle yog dab tsi?
A txheej txheem yog ib tug mechanism nyob rau hauv ib tug operating system uas yuav khiav ib tug series ntawm cov kauj ruam. Lub mechanism nyob ntawm lub operating system. Piv txwv li, ntawm Linux ib qho Oracle keeb kwm txheej txheem yog Linux txheej txheem . Hauv Windows, ib Oracle keeb kwm txheej txheem yog ib txoj kab ntawm kev ua haujlwm hauv ib txheej txheem . Code modules khiav los ntawm txheej txheem.
Tsis tas li ntawd, dab tsi yog txheej txheem hauv database? Cov txheej txheem a database thiab tag nrho cov khoom uas nws muaj. Thaum twg Txheej txheem Tag nrho yog khiav rau ib yam khoom uas twb tau ua tiav lawm, Analysis Services poob tag nrho cov ntaub ntawv nyob rau hauv cov khoom, thiab ces txheej txheem qhov khoom. Kev ua haujlwm zoo li no yuav tsum tau ua thaum muaj kev hloov pauv ntawm cov qauv rau ib yam khoom.
Yog li, dab tsi yog Oracle keeb kwm txheej txheem?
Cov cov txheej txheem tom qab ntawm Oracle piv txwv li tswj cov qauv nco, asynchronously ua I / O los sau cov ntaub ntawv rau cov ntaub ntawv ntawm lub disk, thiab ua cov haujlwm saib xyuas dav dav. Oracle Database tso cai rau ntau tshaj 36 tus sau database txheej txheem . Log writer (LGWR) The log writer txheej txheem sau redo log nkag rau disk.
Dab tsi yog j000 txheej txheem hauv Oracle?
Oracle qhev txheej txheem ( J000 - J999) ua tiav cov haujlwm tau teem tseg. CJQ 0 txheej txheem yuav ua raws li lub sij hawm thiab pib qhev txheej txheem kom ua tiav cov haujlwm tau teem tseg. Nquag, parameter job_queue_processes tsis tau teem caij rau xoom vim nws yuav lov tes taw tag nrho cov kev ua haujlwm queue thiab nres CJQ0 txheej txheem.
Pom zoo:
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