Video: Dab tsi yog hom ntawv cov ntaub ntawv hauv SQL Server?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Nws yog Non-Unicode loj Hloov pauv Ntev cim hom ntaub ntawv , uas tuaj yeem khaws qhov siab tshaj plaws ntawm 2147483647 Cov Cim Tsis-Unicode (piv txwv li qhov peev xwm siab tshaj plaws yog: 2GB). Version ntawm lub Sql Server nyob rau hauv uas nws yog qhia? Cov ntaub ntawv hom ntawv yog tam sim no los ntawm cov qub versions ntawm Sql Server.
Kuj kom paub yog, dab tsi yog text datatype hauv SQL?
TXOJ CAI (loj) Tuav txoj hlua nrog qhov ntev tshaj plaws ntawm 65, 535 bytes. BLOB (loj) Rau BLOBs (Binary Loj OBjects). Tuav mus txog 65,535 bytes ntawm cov ntaub ntawv.
Ib tug kuj nug, hom ntaub ntawv dab tsi yog nyiaj hauv SQL Server? Hauv qab npog, NYIAJ yog khaws cia ua tus lej hom ntaub ntawv . Tus lej lej, qhov kev xaiv ib txwm muaj rau khaws cia tus nqi nyiaj, tuaj yeem nyob ntawm -10^38 +1 txog 10^38 - 1.
text data type yog dab tsi?
TEXT cov ntaub ntawv hom . Cov TEXT cov ntaub ntawv hom khw muag khoom txhua yam cov ntaub ntawv . Nws tuaj yeem muaj ob leeg ib-byte thiab multibyte cim uas lub zos txhawb nqa. Lo lus yooj yooj yim cov khoom loj yog hais txog ib qho piv txwv ntawm a TXOJ CAI los yog BYTE hom ntaub ntawv.
Dab tsi yog hom ntaub ntawv duab hauv SQL Server?
Rau SQL Server Hauv "ImageSample", lub rooj duab yog khaws cia rau hauv daim ntawv ntawm Varbinary (max) hom ntaub ntawv , thaum nyob hauv "ImageSample1", lub rooj duab yog khaws cia rau hauv daim ntawv ntawm Daim duab datatype . Tam sim no, cia peb ua cov kauj ruam los qhia ib qho duab hauv Power BI.
Pom zoo:
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