Video: Cov ntaub ntawv txheeb cais siv rau dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv piav txheeb cais , Cov ntawv txheeb cais yog siv rau xaus lus ib txheej ntawm kev soj ntsuam, txhawm rau sib txuas lus cov ntaub ntawv loj tshaj plaws kom yooj yim li sai tau. Cov neeg txheeb cais feem ntau sim piav qhia qhov kev soj ntsuam hauv qhov ntsuas ntawm qhov chaw, lossis qhov nruab nrab nyiam, xws li tus lej lej.
Kuj paub, cov ntsiab lus ntawm cov txheeb cais yuav tsum muaj li cas?
Summary Statistics . Cov ntaub ntawv uas muab cov lus piav qhia sai thiab yooj yim ntawm cov ntaub ntawv. Ua tau suav nrog txhais tau tias, nruab nrab, hom, yam tsawg kawg nkaus tus nqi, siab tshaj tus nqi, ntau yam, tus qauv sib txawv, thiab lwm yam.
Ib yam li ntawd, lub ntsiab lus txheeb cais yog dab tsi? Cov cov lus qhia yog ib tug visualization uas summarizes txheeb cais cov ntaub ntawv hais txog cov ntaub ntawv hauv rooj daim ntawv. Cov ntaub ntawv yog nyob ntawm ib cov ntaub ntawv rooj hauv TIBCO Spotfire. Koj tuaj yeem, txhua lub sijhawm, xaiv qhov ntsuas koj xav pom (xws li txhais tau tias, nruab nrab, thiab lwm yam), nrog rau cov kab uas los ua cov ntsuas no.
Tom qab ntawd, lo lus nug yog, lub hom phiaj tseem ceeb ntawm kev piav qhia txheeb cais yog dab tsi?
Cov Lub hom phiaj tseem ceeb ntawm kev piav qhia txheeb cais yog muab cov ntsiab lus luv luv ntawm cov qauv thiab cov kev ntsuas ua tiav ntawm ib qho kev kawm tshwj xeeb. Ua ke nrog ntau qhov kev ntsuam xyuas duab, piav txheeb cais form ib loj feem ntawm yuav luag tag nrho cov ntaub ntawv txheeb xyuas qhov ntau.
Cov ntaub ntawv xaus yog dab tsi?
Cov ntaub ntawv txhais tau tias ib tug tshiab Cov ntsiab lus cov ntaub ntawv yog tsim los khaws cov nqi sib sau rau tag nrho hauv kab. Kis mus cov ntaub ntawv txhais tau tias ib tug tshiab sub- Cov ntsiab lus lossis cov ntaub ntawv sib kis rau txhua lub sijhawm sib kis yog tsim nrog tus kheej tus nqi rau lub sijhawm ntawd. Cov ntaub ntawv cov rooj khaws cia ib ntus thiab faib cov cov ntaub ntawv.
Pom zoo:
Dab tsi yog qhov txawv ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb?
Qhov sib txawv loj ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb Ib daim ntawv XML muaj cov ntaub ntawv hais txog kev sib raug zoo ntawm cov ntaub ntawv rau ib leeg nyob rau hauv daim ntawv ntawm hierarchy. Nrog rau tus qauv kev sib raug zoo, tib hom kev sib raug zoo uas tuaj yeem txhais tau yog cov lus niam txiv thiab cov rooj sib raug zoo
Microsoft Excel yuav pab tau tus neeg li cas los txheeb xyuas cov ntaub ntawv txheeb cais?
Excel muaj ntau yam kev txheeb cais uas koj tuaj yeem siv los suav ib tus nqi lossis ib qho ntawm cov txiaj ntsig hauv koj daim ntawv ua haujlwm Excel. Excel Analysis Toolpak yog ib qho ntxiv-hauv uas muab cov cuab yeej txheeb xyuas ntau dua. Tshawb xyuas cov cuab yeej siv tau zoo no los ua kom zoo tshaj plaws ntawm koj qhov kev txheeb xyuas kev txheeb xyuas
Lub hom phiaj ntawm kev txheeb cais cov ntaub ntawv quizlet yog dab tsi?
Kev faib cov cim qhia txog kev nkag tshwj xeeb, kev tshaj tawm, lossis kev tiv thaiv kev tiv thaiv. Thaum declassifying ib daim ntawv, ib tug '(U)' yuav tsum tsis txhob hloov cov thawj feem cim
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
Vim li cas cov ntaub ntawv zoo tseem ceeb heev rau kev sau cov ntaub ntawv txheeb cais?
Cov ntaub ntawv muaj txiaj ntsig zoo yuav ua kom muaj txiaj ntsig ntau dua hauv kev tsav lub tuam txhab kev vam meej vim yog kev vam khom ntawm qhov tseeb-raws li kev txiav txim siab, tsis yog kev coj cwj pwm lossis tib neeg kev xav. Ua kom tiav: Xyuas kom tsis muaj qhov khoob ntawm cov ntaub ntawv los ntawm qhov yuav tsum tau sau thiab qhov twg tau sau tiag