2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Index reorganization yog txheej txheem uas SQL Server mus dhau qhov ntsuas uas twb muaj lawm thiab ntxuav nws. Index rebuild yog txheej txheem hnyav qhov twg qhov Performance index raug tshem tawm thiab tom qab ntawd rov tsim dua los ntawm kos nrog cov qauv tshiab, pub dawb los ntawm tag nrho cov khoom seem thiab cov nplooj ntawv khoob.
Dab tsi yog qhov txawv ntawm Rebuild index thiab reorganize hauv SQL Server?
Rebuild: rebuild poob qhov ntsuas uas twb muaj lawm thiab rov tsim dua. Reorganize: reorganize lub cev npaj cov nplooj ntawm qhov ntsuas. Yog tias index fragmentation qhia saum toj no 40%.
Kuv puas yuav tsim kho lossis rov txhim kho qhov ntsuas?
Ib qho kev ntsuas rov tsim kho yuav ib txwm tsim qhov ntsuas tshiab, txawm tias tsis muaj kev tawg. … Qhov no txhais tau hais tias rau qhov ntsuas me me (piv txwv li tsawg dua 30% fragmentation), nws feem ntau nrawm dua los kho qhov ntsuas, tab sis rau qhov ntsuas hnyav dua, nws feem ntau nrawm dua kom rov tsim qhov ntsuas.
Dab tsi yog rov tsim kho qhov Performance index?
Rebuilding an index txhais tau tias deleting the old index hloov nws nrog tus tshiab index. Ua ib qho kev ntsuas rov tsim dua tshem tawm cov kev sib cais, ua kom cov nplooj ntawv raws li qhov uas twb muaj lawm sau qhov teeb tsa kom rov qab tau qhov chaw khaws cia, thiab tseem rov txiav txim cov kab ntsuas hauv cov nplooj ntawv sib txuas.
Puas rov tsim qhov ntsuas tsim nyog?
Txhua zaus, peb xav tau rov tsim kho qhov ntsuas hauv Oracle, vim tiasindexes ua fragmented lub sij hawm. Qhov no ua rau lawv cov kev ua tau zoo - thiab los ntawm kev txuas ntxiv - uas ntawm koj cov lus nug database, kom degrade. … Tau hais tias, indexes yuav tsum tsis txhob rebuilt mus rau ntau zaus, vim hais tias nws yog ib tug muaj peev xwm ua hauj lwm hnyav.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov rov ua dua thiab rov tsim dua?
Dab tsi yog qhov txawv ntawm Kev Rov Ua Dua thiab Rov Ua Dua? … repeatability ntsuas qhov kev hloov pauv hauv kev ntsuas los ntawm ib qho cuab yeej lossis tib neeg nyob rau hauv tib yam xwm txheej, thaum ntsuas kev rov tsim dua txawm tias tag nrho txoj kev kawm lossis kev sim tuaj yeem rov tsim dua tag nrho.
Puas yog txawv txawv thiab txawv txawv lossis cov lus sib txawv?
Cov lus txawv txawv thiab txawv txawv yog synonyms, tab sis txawv ntawm nuance. Tshwj xeeb, alienate tej zaum yuav los yog tsis qhia kev sib cais tab sis ib txwm hais txog kev poob kev hlub lossis kev txaus siab. Dab tsi yog lub ntsiab lus ntawm alienate?
Dab tsi yog kev xav ntawm autonomists dab tsi yog qhov kev xav ntawm kev zoo nkauj ntawm kev coj ncaj ncees?
Kev lig kev cai, muaj ob txoj haujlwm tawm tsam kev xav txog kev coj ua raws li kev cai lij choj ntawm kev ntsuas kev ncaj ncees ntawm kev kos duab: 'kev coj ncaj ncees kev ncaj ncees Ethics lossis kev coj ncaj ncees yog ib ceg ntawm kev xav uas "
Qhov twg yog hais txog kev rov siv dua thiab rov ua dua tshiab?
Recycling txhais tau tias tig ib yam khoom rau hauv cov ntaub ntawv raw uas tuaj yeem siv dua, feem ntau yog rau cov khoom tshiab. Qhov no yog ib txoj kev siv zog. Reusing hais txog kev siv ib yam khoom raws li nws tsis muaj kev kho mob. Qhov no txo cov pa phem thiab pov tseg, yog li ua rau nws muaj kev ruaj ntseg dua.
Qhov txawv ntawm kev hloov kho thiab kev hloov kho tshiab yog dab tsi?
Ib lub tog raj kheej txhim kho zoo tshaj plaws ntawm 20 mus rau 35 yards. … Hloov kho: Qhov choke no muaj tsawg dua qhov choke tag nrho, xa kwv yees li 60 feem pua ntawm lub plhaub tag nrho cov pellets nyob rau hauv lub voj voog 30-nti ntawm 40 yards.
