Cov txheej txheem:
- Puas muaj JSON hom hauv SQL Server?
- JSON hom ntawv hauv SQL yog dab tsi?
- Dab tsi ntawm SQL Server txhawb JSON?
- Puas JSON thiab SQL tib yam?
Video: Puas sql server puas muaj json datatype?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Tsis muaj cov ntaub ntawv tshwj xeeb rau JSON SQL Server zoo li XML. Peb yuav tsum siv NVARCHAR thaum peb cuam tshuam nrog JSON. Muaj ntau lub zog ua haujlwm muaj nrog SQL Server 2016, xws li ISJSON, JSON_VALUE, JSON_QUERY, JSON_MODIFY, OPENJSON, thiab FOR JSON. Siv cov haujlwm no, peb tuaj yeem ua si nrog JSON khoom.
Puas muaj JSON hom hauv SQL Server?
JSON tsis yog hom ntaub ntawv ib txwm muaj. Ib kem SQL neeg rau zaub mov uas muaj JSON cov ntaub ntawv los ntawm cov ntaub ntawv xav tau yog kab kab kab Koj tuaj yeem sau JSON cov ntaub ntawv rau kab lus raws li koj xav sau ib txoj hlua tsis tu ncua thiab koj tuaj yeem ua qhov ntawd hauv ib qho twg. versions ntawm SQL Server, nrog rau lwm yam RDBMS.
JSON hom ntawv hauv SQL yog dab tsi?
JSON Format
In essence, SQL Server hloov txhua kab hauv lub ntsiab lus rau JSON khoom. Hauv txhua qhov khoom, lub npe kab tau muab txhais rau JSON lub npe thiab tus nqi rau kab ntawv hauv kab ntawd yog sawv cev raws li tus nqi JSON.
Dab tsi ntawm SQL Server txhawb JSON?
Raws li qhov xav tau tshaj plaws ntawm Microsoft SQL Server txuas qhov chaw, nrog ntau dua 1, 000 tus neeg pov npav, kev txhawb nqa rau JSON kev sau ntawv tau ntxiv rau SQL Server 2016.
Puas JSON thiab SQL tib yam?
Lawv yog 2 yam sib txawv kiag li. SQL yog siv los sib txuas lus nrog databases, feem ntau yog tsim, hloov tshiab thiab rho tawm cov ntaub ntawv nkag. JSON muab cov khoom ua qauvcim / qauv los tham nrog cov kev pabcuam hauv lub vev xaib.
Pom zoo:
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SQL Server automatically recompiles khaws cov txheej txheem, ua rau, thiab cov neeg siv txhais cov haujlwm thaum nws muaj txiaj ntsig los ua qhov no . Kuv yuav ua li cas rov ua dua SQL Server saib? Yuav kom rov tsim kho txhua qhov kev xav ntawm SQL Server database, koj tuaj yeem siv cov ntawv hauv qab no:
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Puas muaj cov kev xav pom hauv sql server?
Nyob hauv SQL Server, saib nrog cov cim tshwj xeeb ntawm nws (aka "materialized view") tsis thiab tsis tuaj yeem hloov kho los ntawm tus neeg siv, tsis yog nws khaws cia nyob rau hauv ib tug nyias muaj nyias lub rooj-tsim - nws yog ib txwm hloov kho los ntawm lub cav thaum lub sij hawm hloov tshiab, thiab yeej tsis tawm ntawm sync.
