Izinhlobo zemikhakha ku-database Hlangana nabasebenzi!

Lesi sihloko Izinhlobo zemikhakha yedatha, inenhloso yokunikeza umfundi okuvame kakhulu nokusetshenziswa emkhakheni wezinhlelo.

Izinhlobo ze-Field-in-database-1

Izinhlobo zamasimu ku-database

Ngaphambi kokwazi ukuthi yiziphi izinhlobo zensimu ku-database, siqala ukuthi i-database (i-BBDD), ibhekisa ochungechungeni lwemininingwane efanayo nokuthi ibhaliswe ngendlela ehlelekile esetshenziswayo, ukucutshungulwa kwale datha , kuzoya ngezinhloso ezibekiwe ukufeza umkhiqizo.

I-database yakhiwe ngamatafula ahlukene anenhloso yokubhalisa ngokuya ngokusebenza kwezici zawo aklanyelwe zona.

Sincoma i-athikili elandelayo Izinhlobo zedatha ku-mysql.

Isimo samanani aqoshwe emkhakheni ngamunye kufanele sicatshangelwe, i-database isebenza ngolwazi oluhlukile, kubalulekile ukuthi wazi ukuthi kufanele kukhonjiswe ukuthi yiluphi uhlobo lwenani olufakiwe, olwenza ngcono ukusesha okuzayo futhi thola imiphumela emihle kakhulu kwimemori.

Izinhlobo zezinkundla zemininingwane ethandwa kakhulu ziboniswa ngezansi, okuyilezi:

I-Alphanumerics

Yibo bonke labo abanezinombolo nezinhlamvu, bangamelwa ngesikhala sezinhlamvu ezingama-225.

Izinombolo

Ngokuphathelene nezinombolo, zizinhlobo ezahlukahlukene, ikakhulukazi izinombolo ezingenawo amadesimali, nezinombolo zangempela ezimelwe ngamadesimali.

AmaBoolean

Yizinkambu lapho kubhaliswe khona izindlela ezimbili: Yebo noma Cha, kuyiqiniso noma kungamanga.

Izinsuku

Le yimikhakha ehloselwe ukuqopha izinsuku, ezenza kube lula ukuxhashazwa kwazo kamuva; izinsuku zokonga ngale ndlela zinikeza ithuba lokuhlela amarekhodi ngezinsuku noma ukubala izinsuku phakathi kwezinsuku.

AmaMemo

Kusho izinkambu ze-alphanumeric ezinezikhala ezingenamkhawulo, kepha isithiyo abanazo ukuthi azikwazi ukukhonjwa.

Abazikhulisayo

Lezi yizinkambu zezinombolo eziphelele ezandisa inani lazo ngeyunithi eyodwa yerekhodi ngalinye elifakiwe, inzuzo abayinikezayo ukuthi zisebenza njengesikhombi, ngoba zikhethekile kwirekhodi elithile.


Yiba ngowokuqala ukuphawula

Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe. Ezidingekayo ibhalwe nge *

*

*

  1. Ubhekele idatha: I-Actualidad Blog
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.