Cov txheej txheem:

Kuv yuav lim lub rooj hauv SQL Server li cas?
Kuv yuav lim lub rooj hauv SQL Server li cas?

Video: Kuv yuav lim lub rooj hauv SQL Server li cas?

Video: Kuv yuav lim lub rooj hauv SQL Server li cas?
Video: Data Science with Python! Analyzing File Types from Avro to Stata 2024, Kaum ib hlis
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Lim Advance Steel Database Table Names hauv SQL Server Management Studio

  1. Hauv Object Explorer, xaiv ib lub database thiab nthuav nws cov ntsiab lus.
  2. Xaiv tus Rooj qeb.
  3. Hauv Object Explorer toolbar, nyem ( Lim ).
  4. Cov Lim Qhov rai qhov rais tshwm.
  5. Teem cov txheej txheem xav tau thiab nyem OK kom txuag thiab tawm.

Kuj nug, koj yuav lim cov ntaub ntawv li cas?

Txhawm rau lim lub rooj database, ua raws li cov kauj ruam no:

  1. Nyob rau hauv All Access Objects pane ntawm sab laug ntawm lub vijtsam, nyem ob npaug rau lub npe ntawm lub rooj database koj xav lim.
  2. Nyem lub Tsev tab.
  3. Nyem rau hauv daim teb (kem) uas koj xav siv ua lim.
  4. Hauv pawg Sort & Filter, nyem qhov Filter icon.

Koj lim cov lus nug li cas? Rau lim data hauv a nug , qhib nws hauv Datasheet View, nyem qhov down- xub nyob rau sab saum toj ntawm ib kab, thiab xaiv a lim kev xaiv. Koj tuaj yeem xaiv ntau yam txiaj ntsig los ntawm daim ntawv teev npe, tab sis hauv ib qho app, lub lim daim ntawv kaw txhua zaus koj xaiv qhov kev xaiv.

Tsuas yog li ntawd, kuv yuav lim xyoo hauv SQL li cas?

Yog koj siv SQL ntawv Server, koj tuaj yeem siv lub Xyoo () lossis DATEPART() muaj nuj nqi los rho tawm cov xyoo los ntawm ib hnub. Xaiv Xyoo (CURRENT_TIMESTAMP); SELECT DATEPART( xyoo , CURRENT_TIMESTAMP); Zoo ib yam li SQL ntawv Server, MySQL kuj txhawb cov Xyoo () ua haujlwm kom rov qab tau cov xyoo los ntawm ib hnub.

Qhov kev lim dej yog dab tsi?

Cov lim mob yog ib qho kev qhia uas rov TRUE lossis FALSE. Koj tuaj yeem tsim ib lossis ntau qhov yooj yim lim tej yam kev mob . Ib qho yooj yim lim mob suav nrog lub npe teb, tus neeg teb xov tooj, thiab tus nqi. Piv txwv li, Kev Muag Khoom> 0 khaws cov kab uas tag nrho cov nqi muag khoom ntau dua xoom. Lim tej yam kev mob yog case sensitive.

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