Qhov twg invokes functions hauv sql?

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Qhov twg invokes functions hauv sql?
Qhov twg invokes functions hauv sql?

Video: Qhov twg invokes functions hauv sql?

Video: Qhov twg invokes functions hauv sql?
Video: SQL Server Queries Part 7 - Using Functions in Queries 2024, Hlis ntuj nqeg
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Qhov twg hauv qab no hu ua haujlwm hauv sql? Nqe lus piav qhia: JDBCmuab cov Lus Qhia Hu rau interface uas tso cai rau kev thov ntawm SQL khaws cov txheej txheem thiab ua haujlwm.

Cov haujlwm hu ua dab tsi hauv SQL?

Nws muaj peb yam ntawm cov neeg siv-txhais ua haujlwm hauv SQL Server: Scalar Functions (Rau Ib Tus Nqi Ib Leeg) Inline Table Valued Functions (Muaj ib nqe lus TSQL thiab xa rov qab rau lub Rooj Teeb) Multi-Statement Table Valued Functions (Muaj ntau TSQL nqe lus thiab rov qab Table Table)

Qhov twg hauv qab no invokes khaws cov txheej txheem hauv SQL?

Java JDBC API's CallableStatement interface txuas ntxiv Npaj Cov Lus Qhia thiab tau txhais hauv java.sql pob. Qhov no yog siv los ua cov txheej txheem SQL khaws cia. API muab cov txheej txheem khaws cia SQL khiav tawm syntax uas tso cai rau cov txheej txheem hu ua tus qauv rau txhua RDBMSs.

Kev ua haujlwm siv nyob rau hauv SQL Server nyob qhov twg?

Siv SQL Server Management Studio

  1. Nyob rau hauv Object Explorer, nyem lub cim ntxiv ntawm ib sab ntawm cov ntaub ntawv uas muaj cov haujlwm uas koj xav pom cov khoom, thiab tom qab ntawd nyem rau lub cim ntxiv kom nthuav dav Programmability folder.
  2. Nias lub cim ntxiv txhawm rau nthuav cov Functions folder.

Kuv yuav nrhiav tau txoj haujlwm hauv SQL database li cas?

Nyob rau hauv Object Explorer hauv SQL Server Management Studio, mus rau lub database thiab nthuav nws. Qhib Programmability folder. Nthuav cov Functions folder. Nyob rau hauv cov ntawv tais ceev tseg, koj tuaj yeem nrhiav sub folders rau txhua hom UDF.

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