Video: Dab tsi yog phau ntawv txhais lus cov ntaub ntawv hauv kev tshawb fawb?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A Cov ntaub ntawv phau ntawv txhais lus Txhais
A Cov ntaub ntawv phau ntawv txhais lus yog ib phau ntawm cov npe, txhais, thiab cwj pwm txog cov ntaub ntawv cov ntsiab lus uas tau siv los yog ntes nyob rau hauv ib lub database, cov ntaub ntawv system, los yog ib feem ntawm a kev tshawb fawb qhov project. A Cov ntaub ntawv phau ntawv txhais lus kuj muab metadata txog cov ntaub ntawv cov ntsiab lus.
Cov lus nug tseem yog, dab tsi yog phau ntawv txhais lus cov ntaub ntawv thiab nws lub hom phiaj yog dab tsi?
A cov ntaub ntawv phau ntawv txhais lus yog ib phau ntawm kev piav qhia ntawm lub cov ntaub ntawv cov khoom lossis cov khoom hauv a cov ntaub ntawv qauv rau cov txiaj ntsig ntawm cov programmers thiab lwm tus uas yuav tsum tau xa mus rau lawv. Thawj kauj ruam hauv kev txheeb xyuas cov khoom siv uas cov neeg siv sib cuam tshuam yog txhawm rau txheeb xyuas txhua yam khoom thiab nws kev sib raug zoo rau lwm yam khoom.
Qhov thib ob, dab tsi yog phau ntawv txhais lus cov ntaub ntawv hauv database? A cov ntaub ntawv phau ntawv txhais lus yog ib cov ntaub ntawv los yog ib pawg ntawm cov ntaub ntawv uas muaj a database cov metadata. Cov cov ntaub ntawv phau ntawv txhais lus muaj cov ntaub ntawv hais txog lwm yam khoom hauv lub database , zoo li cov ntaub ntawv kev ua tswv cuab, cov ntaub ntawv kev sib raug zoo rau lwm yam khoom, thiab lwm yam cov ntaub ntawv.
Yog li ntawd, dab tsi yog qhov piv txwv ntawm phau ntawv txhais lus?
19.11 Cov ntaub ntawv phau ntawv txhais lus A cov ntaub ntawv phau ntawv txhais lus yog qhov chaw khaws cia hauv nruab nrab ntawm metadata. Metadata yog cov ntaub ntawv txog cov ntaub ntawv . Ib txhia piv txwv ntawm yam uas yuav muaj nyob rau hauv ib lub koom haum cov ntaub ntawv phau ntawv txhais lus suav nrog: Cov cov ntaub ntawv hom, e.g., integer, tiag, tus cwj pwm, thiab cov duab ntawm txhua qhov chaw hauv lub koom haum cov ntaub ntawv.
Dab tsi yog phau ntawv txhais lus cov ntaub ntawv hauv Excel?
A cov ntaub ntawv phau ntawv txhais lus yog ib lub ntsiab lus ntawm cov ntxhuav/cov ntaub ntawv thiab kab/teb nyob rau hauv a cov ntaub ntawv teeb (database, cov ntaub ntawv warehouse los yog cov ntaub ntawv pas dej).
Pom zoo:
Dab tsi yog cov ntaub ntawv phau ntawv txhais lus hauv kev txheeb xyuas kev lag luam?
Cov Ntawv Txhais Lus Cov Ntaub Ntawv yog RML cov qauv ntaub ntawv uas khaws cov ntsiab lus ntawm qib teb txog cov ntaub ntawv hauv ib qho system lossis cov tshuab. Thaum lub sij hawm qhov yuav tsum tau ua, lub hom phiaj tsis yog ntawm cov ntaub ntawv tiag tiag hauv cov ntaub ntawv lossis kev tsim qauv tsim nyog los siv cov khoom lag luam cov ntaub ntawv hauv cov ntaub ntawv
Dab tsi yog cov txiaj ntsig tseem ceeb ntawm kev siv phau ntawv txhais lus cov ntaub ntawv?
Ib phau ntawv txhais lus tsim tau tuaj yeem muab cov koom haum thiab cov lag luam muaj txiaj ntsig ntau, suav nrog: Txhim kho cov ntaub ntawv zoo. Txhim kho kev ntseeg siab ntawm cov ntaub ntawv ncaj ncees. Txhim kho cov ntaub ntawv thiab kev tswj xyuas. Txo cov ntaub ntawv redundancy. Rov qab siv cov ntaub ntawv. Kev sib raug zoo ntawm kev siv cov ntaub ntawv. Kev txheeb xyuas cov ntaub ntawv yooj yim dua. Txhim kho kev txiav txim siab raws li cov ntaub ntawv zoo dua
Dab tsi yog tus lej ncaj qha uas yuav tsum raug tshem tawm ntawm cov ntaub ntawv tshawb fawb kom ua raws li kev siv cov ntaub ntawv txwv?
Cov ntaub ntawv qhia ncaj qha hauv qab no yuav tsum raug tshem tawm rau PHI kom tsim nyog raws li cov ntaub ntawv txwv: (1) Cov npe; (2) Cov ntaub ntawv chaw nyob xa ntawv, tsis yog lub nroog lossis nroog, xeev, thiab ZIP code; (3) xov tooj; (4) fax xov tooj; (5) email chaw nyob; (6) social security naj npawb; (7) cov ntaub ntawv kho mob; (8) kev npaj kho mob
Dab tsi ntawm cov hauv qab no yog cov txheej txheem kev tshuaj xyuas cov ntaub ntawv hauv kev tshawb fawb zoo?
Cov txheej txheem kev txheeb xyuas cov ntaub ntawv feem ntau siv yog: Kev tsom xam cov ntsiab lus: Qhov no yog ib txoj hauv kev zoo tshaj plaws los tshuaj xyuas cov ntaub ntawv zoo. Kev txheeb xyuas cov lus piav qhia: Txoj kev no yog siv los txheeb xyuas cov ntsiab lus los ntawm ntau qhov chaw, xws li kev xam phaj ntawm cov neeg teb, kev soj ntsuam los ntawm thaj chaw, lossis kev tshawb fawb
Dab tsi yog qhov zoo ntawm kev tshawb fawb zoo tshaj li kev tshawb fawb ntau?
Cov ntaub ntawv los ntawm kev tshawb fawb ntau - xws li kev lag luam loj, pej xeem, thiab cov neeg siv nyiam - muab cov ntaub ntawv tseem ceeb rau kev txiav txim siab ua lag luam. Kev tshawb fawb zoo muab cov ntaub ntawv tseem ceeb rau kev siv hauv kev tsim cov khoom lag luam-nrog rau cov ntaub ntawv hais txog cov neeg siv khoom xav tau, tus qauv coj tus cwj pwm, thiab cov ntaub ntawv siv