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