Chiyambi cha Masamba, SQL, ndi Microsoft Access
Pamwamba, malo osungira zinthu angayang'ane ngati spreadsheet; ili ndi deta yokonzedwa m'mizere ndi mizere. Koma apa ndi pamene kufanana kumathera chifukwa databata ndi wamphamvu kwambiri.
Kodi Chitukuko Chingachititse Chiyani?
Mndandanda wazinthu umakhala ndi ntchito yofufuzira kwambiri. Mwachitsanzo, dipatimenti yogulitsa malonda ingathe kufufuza ndi kupeza ogulitsa onse omwe adapeza malonda angapo pa nthawi inayake.
Deta yachinsinsi ikhoza kusinthira zolemba zambiri - ngakhale zolemba zambiri kapena zambiri. Izi zingakhale zothandiza, mwachitsanzo, ngati mukufuna kuwonjezera zigawo zatsopano kapena kugwiritsa ntchito patch ya mtundu wina.
Ngati malowa ndi achibale , omwe ali ndi mauthenga ambiri, akhoza kuwerenga zolemba m'mabuku osiyanasiyana. Izi zikutanthauza kuti mukhoza kupanga mgwirizano pakati pa matebulo. Mwachitsanzo, ngati mutagwirizanitsa tebulo la Amalonda ndi tebulo la Malamulo, mungapeze maulamuliro onse ogulidwa kuchokera pa tebulo la Malamulo kuti kasitomala amodzi kuchokera pa matebulo amtengowo adakonzedweratu, kapena kuonjezeretsanso kuti abwerere malamulo omwewo omwe akutsatiridwa panthawi inayake - kapena pafupi mtundu uliwonse wa kuphatikiza komwe mungaganizire.
Mndandanda wachinsinsi ungathe kupanga zowerengeka zowerengeka m'matawuni ambiri. Mwachitsanzo, mungathe kulemba ndalama zogulitsa katundu wambiri, kuphatikizapo zonse zomwe zingatheke.
Mndandanda wachinsinsi ukhoza kugwirizanitsa kusagwirizana ndi deta, zomwe zikutanthauza kuti zingapewe kubwereza ndikuonetsetsa kuti chidziwitso cha deta mwachindunji ndi zovuta zambiri.
Kodi Ma Structure a Database?
Pa zosavuta zake, deta ili ndi matebulo okhala ndi zipilala ndi mizere. Deta imasiyanitsidwa ndi magulu mu matebulo kuti mupewe kubwereza. Mwachitsanzo, bizinesi ikhoza kukhala ndi tebulo kwa Ogwira ntchito, limodzi la Amalonda ndi lina la Zamalonda.
Mzere uliwonse mu tebulo amatchedwa mbiri, ndipo selo iliyonse ndi munda. Munda uliwonse (kapena column) ungapangidwe kuti ukhale ndi deta yapadera, monga nambala, malemba kapena tsiku. Izi zikulimbikitsidwa ndi malamulo angapo kuti zitsimikizire kuti deta yanu ndi yolondola komanso yodalirika.
Ma tebulo mu deta yachiyanjano akugwirizanitsidwa kudzera mu fungulo. Ichi ndi chidziwitso pa tebulo lililonse limene limadziwika mzere. Gome lirilonse liri ndi chinsinsi chachinsinsi , ndipo tebulo lililonse lomwe liyenera kulumikizana ndi tebulolo lidzakhala ndi chikho chachinsinsi chakunja chomwe mtengo wake uyenera kukhala wofanana ndi chinsinsi choyamba cha tebulo.
Deta yachinsinsi idzaphatikiza mafomu kuti owerenga athe kuyika kapena kusintha deta. Kuwonjezera apo, lidzakhala ndi malo opangira mauthenga ochokera ku deta. Lipoti limangokhala yankho la funso, lotchedwa funso muzinenero-kuyankhula. Mwachitsanzo, mungathe kufufuza deta kuti mudziwe ndalama zambiri za kampani pa nthawi inayake. Mndandanda wa mabanki udzabwerera kwa inu lipoti ndi zomwe mwafunsidwa.
Zolemba Zachikhalidwe Zowonjezeka
Microsoft Access ndi imodzi mwa mapulaneti otchuka kwambiri m'misika lero. Zimagulitsidwa ndi Microsoft Office ndipo zimagwirizana ndi zinthu zonse za Office. Zimakhala ndi maulesi komanso mawonekedwe osavuta kugwiritsa ntchito omwe akutsogolera pa chitukuko chanu. Maofesi ena a ma CD amakhalaponso, kuphatikizapo FileMaker Pro, LibreOffice Base (yomwe ili yaulere) ndi Deta yolondola.
Ngati mukuganiza za deta yamakampani akuluakulu, mungafunike kulingalira za mndandanda wa seva wochokera ku Language Structured Query (SQL) . SQL ndichinenero chofala kwambiri chamasayansi ndipo chikugwiritsidwa ntchito ndi mazambiri ambiri lero.
Mauthenga a pakompyuta monga MySQL, Microsoft SQL Server, ndi Oracle ali amphamvu kwambiri - komanso amakwera mtengo ndipo amatha kufika pamtunda wophunzira.