Video: Dab tsi yog metadata hauv Java nrog piv txwv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Muab qhov ntawd metadata yog cov txheej txheem piav qhia, qauv thiab kev tswj hwm cov ntaub ntawv hais txog ib pawg ntawm cov ntaub ntawv hauv computer (rau piv txwv xws li database schema), Java Metadata Interface (los yog JMI) yog lub platform-nruab nrab specification uas txhais cov creation, cia, nkag mus, nrhiav thiab pauv ntawm metadata hauv Java programming
Ua raws li qhov no, piv txwv li metadata yog dab tsi?
Ib txhia piv txwv ntawm qhov yooj yim metadata yog tus sau, hnub tsim, hnub hloov kho, thiab cov ntaub ntawv loj. Metadata Nws kuj yog siv rau cov ntaub ntawv tsis zoo xws li dluab, video, nplooj ntawv web, spreadsheets, thiab lwm yam. Cov lus piav qhia thiab cov ntsiab lus tseem ceeb meta tags feem ntau yog siv los piav qhia cov ntsiab lus hauv nplooj ntawv web.
Tsis tas li ntawd, dab tsi yog metadata hauv database nrog piv txwv? Metadata yog cov ntaub ntawv uas piav txog lwm cov ntaub ntawv. Rau piv txwv , tus sau, hnub tsim, hnub hloov kho thiab cov ntaub ntawv loj yog piv txwv ntawm cov ntaub ntawv yooj yim heev metadata.
Cov lus nug tseem yog, dab tsi yog metadata hauv Java?
Metadata hauv paus txhais tau tias cov ntaub ntawv uas muab cov qauv piav qhia txog qee cov ntaub ntawv. Java Metadata cov ntaub ntawv muaj txiaj ntsig tshwj xeeb rau kev sau cov lej uas tuaj yeem hloov mus rau ntau qhov system database lossis rau cov ntsiab lus ntawm ib qho database.
Dab tsi yog metadata thiab nws qhov tseem ceeb?
Metadata thiab Nws qhov tseem ceeb . Metadata yog cov ntaub ntawv uas muab cov ntaub ntawv hais txog lwm cov ntaub ntawv. Txij li thaum Metadata summarizes cov ntaub ntawv yooj yim ntawm cov ntaub ntawv, nws ua rau nrhiav & ua hauj lwm nrog tshwj xeeb cov ntaub ntawv yooj yim dua. Metadata tuaj yeem tsim manually kom muaj tseeb dua, lossis tau txais thiab muaj cov ntaub ntawv yooj yim dua
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