Video: Copy xwb backup txhais li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A luam - tsuas yog thaub qab yog SQL Server thaub qab uas yog ywj siab ntawm qhov sib lawv liag ntawm cov pa SQL Server thaub qab . Feem ntau, noj a thaub qab hloov cov database thiab cuam tshuam li cas tom qab thaub qab rov qab los. Txawm li cas los xij, a luam - nkaus xwb log thaub qab tau Qee zaum yuav pab tau rau kev ua kom rov qab online.
Ib yam li ntawd ib tug yuav nug, dab tsi yog qhov txawv ntawm daim ntawv luam thiab tag nrho cov thaub qab?
A luam - tsuas yog thaub qab yog hom tshwj xeeb ntawm thaub qab tag nrho , uas yog ywj siab ntawm cov pa ib ntus ntawm thaub qab . Cov qhov txawv ntawm daim ntawv - nkaus xwb thiab a thaub qab tag nrho yog a luam - tsuas yog thaub qab tsis dhau los ua lub hauv paus rau qhov sib txawv tom ntej thaub qab . A thaub qab tag nrho ua hauj lwm rau tag nrho cov database rov qab qauv.
Ib sab saum toj no, dab tsi yog qhov txawv ntawm qhov sib txawv thiab kev sib pauv log thaub qab? Los teb cov lus nug tseem ceeb: Ib qho puv thaub qab luam tag nrho nplooj ntawv hauv database uas nyob rau hauv allocated extents. A Differential thaub qab luam tag nrho cov nplooj ntawv uas tau hloov kho txij li qhov kawg tag nrho thaub qab . A pauv ntaub ntawv backup luam cov ntsiab lus ntawm cov kev lag luam log txij thaum kawg pauv ntaub ntawv backup.
Tsuas yog li ntawd, dab tsi yog qhov kev sib pauv log thaub qab?
A pauv ntaub ntawv backup yog a thaub qab ntawm tag nrho cov kev lag luam uas tau tshwm sim nyob rau hauv lub database txij li thaum kawg pauv ntaub ntawv backup raug coj.
Qhov sib txawv backup ua haujlwm li cas?
A Differential thaub qab yog hom ntaub ntawv thaub qab txoj kev uas luam tag nrho cov ntaub ntawv uas tau hloov txij li thaum kawg tag nrho thaub qab tau ua. Qhov no suav nrog cov ntaub ntawv uas tau tsim, hloov kho lossis hloov kho txhua txoj hauv kev thiab tsis luam tag nrho cov ntaub ntawv txhua lub sijhawm.
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