Video: Lub tsev khaws ntaub ntawv muaj dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A cov ntaub ntawv warehouse yog ib qho kev sib raug zoo database uas yog tsim los rau cov lus nug thiab kev tsom xam es tsis yog rau kev ua lag luam. Feem ntau nws muaj keeb kwm cov ntaub ntawv tau los ntawm kev lag luam cov ntaub ntawv , tab sis nws tuaj yeem suav nrog cov ntaub ntawv los ntawm lwm qhov chaw.
Tsis tas li ntawd, dab tsi yog nyob rau hauv cov ntaub ntawv warehouse?
A Cov ntaub ntawv khaws cia (DW) yog txheej txheem rau kev sau thiab tswj cov ntaub ntawv los ntawm ntau qhov chaw los muab kev nkag siab txog kev lag luam muaj txiaj ntsig. A Cov ntaub ntawv warehouse feem ntau yog siv los txuas thiab txheeb xyuas kev lag luam cov ntaub ntawv los ntawm heterogeneous qhov chaw. Nws yog ib qho kev sib xyaw ntawm cov thev naus laus zis thiab cov khoom siv uas pab cov tswv yim siv cov ntaub ntawv.
Qhov thib ob, qhov txawv ntawm cov ntaub ntawv warehouse thiab database yog dab tsi? KEV DIFFERENCE Database yog tsim los sau cov ntaub ntawv hos cov Cov ntaub ntawv warehouse yog tsim los soj ntsuam cov ntaub ntawv . Database siv Online Transactional Processing (OLTP) qhov twg Cov ntaub ntawv warehouse siv Online Analytical Processing (OLAP).
Tom qab ntawd, lo lus nug yog, lub tsev khaws ntaub ntawv yog dab tsi thiab nws siv rau dab tsi?
A cov ntaub ntawv warehouse yog tsim tshwj xeeb rau cov ntaub ntawv analytics, uas yuav tsum tau nyeem ntau npaum li cas cov ntaub ntawv kom nkag siab txog kev sib raug zoo thiab tiam sis thoob plaws lub cov ntaub ntawv . Ib database yog siv mus ntes thiab khaws cia cov ntaub ntawv , xws li sau cov ntsiab lus ntawm kev lag luam.
Dab tsi yog qhov kev kawm oriented cov ntaub ntawv warehouse?
A cov ntaub ntawv warehouse yog a yam - taw qhia , integrated, lub sij hawm-variant thiab non-volatile sau ntawm cov ntaub ntawv nyob rau hauv kev txhawb nqa ntawm kev tswj cov txheej txheem kev txiav txim siab. Kawm paub - Taw qhia : A cov ntaub ntawv warehouse tuaj yeem siv los txheeb xyuas qhov tshwj xeeb yam cheeb tsam. Piv txwv li, "muag" tuaj yeem yog ib qho tshwj xeeb yam.
Pom zoo:
Tus qauv twg yog siv los hloov cov ntaub ntawv kho mob thiab kev tswj hwm ntawm ntau lub tsev kho mob cov ntaub ntawv xov xwm HIS)?
Kev Noj Qab Haus Huv Qib Xya lossis HL7 yog hais txog cov txheej txheem thoob ntiaj teb rau kev hloov pauv cov ntaub ntawv kho mob thiab kev tswj hwm ntawm cov ntawv thov software siv los ntawm ntau tus kws kho mob. Cov qauv no tsom rau cov txheej txheem thov, uas yog 'txheej 7' hauv OSI qauv
Dab tsi yog cov ntaub ntawv hloov pauv hauv cov ntaub ntawv khaws cia?
Cov ntaub ntawv hloov pauv yog cov ntaub ntawv uas tau tsim nyob rau hauv daim ntawv thov kev sib ntsib, uas tsis tau khaws cia hauv cov ntaub ntawv tom qab daim ntawv thov raug txiav
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Kev khaws cia thiab khaws cov ntaub ntawv yog dab tsi?
Cov ntaub ntawv khaws cia thiab khaws cia, cov txheej txheem ntawm kev sau thiab khaws cov ntaub ntawv kom lawv tuaj yeem nyob thiab tso tawm kom pom ntawm kev thov. Document-retrievalsystems khaws tag nrho cov ntaub ntawv, uas feem ntau yog muab los ntawm lub npe lossis los ntawm cov lus tseem ceeb cuam tshuam nrog cov ntaub ntawv
Cov ntaub ntawv khaws cia dab tsi tuav cov ntaub ntawv tshaj plaws?
Cov ntaub ntawv khaws cia rau hauv lub hard disk tuaj yeem nkag tau sai dua li cov ntaub ntawv khaws cia rau ntawm lub disk. Hard disks tuaj yeem khaws ntau cov ntaub ntawv ntau dua li lub floppy disk. Ib qho nyuaj hard disk hauv tus kheej lub computer tuaj yeem tuav ob peb gigabytes ntawm cov ntaub ntawv