Dab tsi yog qhov sib txawv ntawm kev faib cov txheej txheem hauv database?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

Siv cov txheej txheem faib cov ntaub ntawv no, database rooj yog muab faib nyob rau hauv ob txoj kev: ib theem muab faib thiab composite muab faib.

Cov txheej txheem yog:

• Hash Kev faib tawm .
• Ntau yam Kev faib tawm .
• Sau npe Kev faib tawm .

Dhau li ntawm no, dab tsi yog partitioning hauv database?

Kev faib tawm yog cov database txheej txheem nyob qhov twg cov rooj loj muab faib ua ntau qhov me me. Bysplitting ib lub rooj loj rau hauv me me, ib tug neeg cov lus, queries uas nkag tau tsuas yog ib feem ntawm cov ntaub ntawv yuav khiav sai dua vim hais tias muaj tsawg dua cov ntaub ntawv rau scan.

Tsis tas li ntawd, qhov sib txawv ntawm kab rov tav thiab ntsug partitioning yog dab tsi? Qhov sib txawv ntawm kab rov tav thiab ntsug partitioning ntawm cov ntaub ntawv. Kab rov tav partitioning ntawm cov ntaub ntawv hais txog kev khaws cia txawv row rau txawv rooj. Ntawm qhov tsis sib xws, ntsug partitioning ntawm cov ntaub ntawv hais txog kev tsim cov ntxhuav nrog cov kab tsawg dua thiab siv lwm cov tablesto khaws cov kab seem.

Yog li ntawd, dab tsi yog qhov sib txawv ntawm kev faib hauv Oracle?

Oracle muab cov kev faib faib cov hauv qab no:

• Range Partitioning.
• List Partitioning.
• Hash Partitioning.
• Composite Partitioning.

Vim li cas peb thiaj li yuav tsum tau faib cov ntaub ntawv?

Cov ntaub ntawv nkag mus ua haujlwm ntawm txhua qhov muab faib muab qhov chaw me me ntawm cov ntaub ntawv. Ua kom raug, muab faib tuaj yeem ua rau koj qhov system ua haujlwm tau zoo. Kev ua haujlwm uas cuam tshuam ntau tshaj ib qho muab faib tuaj yeem khiav hauv parallel. Txhim kho kev ruaj ntseg.