Phunzirani chomwe chimapanga makiyi abwino kapena oyipa mu database
Kodi chinsinsi chachikulu ndi chiyani? M'dziko lazithunzithunzi , chinsinsi chachikulu cha tebulo yachiyanjano chimadziŵika bwino mbiri iliyonse mu tebulo. Mazenera amagwiritsira ntchito mafungulo kuti afanizire, kusunga, ndi kusunga zolemba, ndi kukhazikitsa ubale pakati pa zolemba.
Kusankha chinsinsi chachikulu mu databata ndi chimodzi mwa ndondomeko zofunika kwambiri panthawiyi. Kungakhale chizoloŵezi chachilendo chomwe chiri chokhazikika monga Social Security nambala patebulo lomwe palibe mbiri imodzi pa munthu kapena - makamaka - ikhoza kupangidwa ndi dongosolo loyang'anira deta monga chizindikiro chodziwika, kapena GUID , mu Microsoft SQL Server . Mafungulo apamwamba akhoza kukhala ndi malingaliro amodzi kapena makhalidwe ambiri palimodzi.
Mafungulo oyambirira ndiwo maulumikizano osiyana ndi mauthenga okhudzana ndi magome ena kumene chinsinsi choyambirira chikugwiritsidwa ntchito. Iyenera kulowedwera pamene mbiri yapangidwa, ndipo siziyenera kusinthidwa. Gome lirilonse m'datala ili ndi mzere kapena ziwiri zomwe zimakhala zofunikira kwambiri.
Chitsanzo Chofunika Kwambiri
Tangoganizani muli ndi tebulo la Ophunzira lomwe lili ndi mbiri kwa ophunzira aliyense ku yunivesite. Nambala ya chidziwitso cha wophunzira wophunzirayo ndi chisankho chabwino chofunikira pa tebulo la STUDENTS. Dzina loyamba ndi lomaliza la wophunzira sali kusankha bwino chifukwa nthawi zonse amakhala ndi mwayi wophunzira ochuluka kuposa dzina limodzi.
Zosankha zina zosasankhidwa za mafungulo apadera ndizomwe zimakhala ndi code, imelo adilesi, ndi abwana, zonse zomwe zingasinthe kapena kuimira anthu ambiri. Chizindikiritso chomwe chimagwiritsidwa ntchito ngati chinsinsi chachikulu chiyenera kukhala chosiyana. Ngakhale nambala za chitetezo chaumoyo zingasinthe pamene Social Security Administration imaperekanso nambala kwa munthu amene wakhudzidwa ndi kuba kwake. Anthu ena alibe nambala ya Security Social. Komabe, chifukwa milandu yonseyi ndi yosawerengeka. Manambala a Security Social angakhale kusankha kwachinsinsi chofunikira.
Malangizo Osankha Zakudya Zoyamba Zabwino
Mukasankha makiyi apamwamba, mabungwe oyang'anira databases ali othamanga komanso odalirika. Ingokumbukirani:
- Muzisunga . Chifukwa chimfungulo chachikulu chimagwiritsidwa ntchito poyerekezera ndi zofananitsa, chimfunguzo chapamwamba chapadera chimatanthawuza njira yosungiramo ma kasitomala amatha kusonkhanitsa mofulumira kuposa chinsinsi chofunika kwambiri.
- Gwiritsani ntchito chiwerengero cha chinsinsi chachikulu pamene kuli kotheka. SQL Server kapena machitidwe ena oyang'anira ma deta kupanga ndondomeko ya chiwerengero cha nambala mofulumira kuposa mtundu wa deta.
- Sungani bwino. Musagwiritse ntchito zida zapadera, malo osakanizidwa, kapena kusakaniza zam'mwamba ndi zotsika mtengo.
- Musasinthe fungulo loyamba mukamaliza.