Mazano Okuti Uite Kushanda Nema Databases Zvishoma
Dhiyabhorosi yakarongeka mune imwe nzira yakatarwa inogona kuonekwa se database. Kune zvizhinji zvekushandiswa kwemashoko edzimba uye zvinoshandiswa munenge pese purogiramu nebasa rinochengeta kana kutora mashoko.
Kana iwe uchingotanga nehwaro hwemashoko, pasi apa pane denga rezvinhu zvepamusoro zvaunoda kuziva usati waenda mberi. Aya mazano anovimbiswa kuita kuti zvive nyore kushanda pamwe nehuwandu hwemashoko uye kuwedzera kubudirira.
01 ye 05
SQL Inofambisa Core of Relational Databases
Iwe haugoni kuzvidzivirira: Mutauro Wemagariro Anotsvaga unoumba hutano hwehutano hwehukama hwose. Inopa mafananisi eunifomu kune Oracle, SQL Server, Microsoft Access, uye mamwe mabhuku ehukama, uye "inofanira kudzidza" kune vose vanoda vanoshandisa database.
Tora sumo yekutanga yeSQL usati waedza kudzidza chero mahwendefa epa database. Nguva yekutsvaga ichakubatsira iwe kuvaka nheyo yakakodzera uye kutanga pamakumbo akakodzera munyika yenhoroondo.
W3Schools.com inzvimbo huru yekutanga yevatangadzi vanoda SQL. Zvimwe ยป
02 of 05
Kusarudza Nheyo Dzinokosha Ndicho Chisarudzo Chinokosha Zvikuru
Kusarudzwa kwekoni yekutanga ndiyo imwe yezvisarudzo zvakakosha zvikuru zvauchaita mukugadzirwa kwedesitamende itsva. Chinhu chinonyanya kukosha ndeyekuti iwe unofanira kuve nechokwadi kuti ikasarudzwa chinhu chakasiyana.
Kana zvichikwanisika kuti mbiri dzakanyorwa (yapfuura, zvoga, kana ramangwana) dzingagoverana kukosha kwakafanana kwechikonzero, ichisarudzo chisina kunaka chekiyi yekutanga. Kana uchitarisisa zvinetso izvi, unofunga kufunga nezvechikonzero.
Iwe uchazofanirawo kudzivisa hutano hwakanaka hunokurudzira zvinetso zvevamwe, seSocial Security Numbers.
Kuti uwane mamwe mashoko pamusoro pokusarudza chinhu chakasimba chekutanga, ona Sarudzo yeKunokosha .
03 of 05
NULL Haisi Zero kana kuti Empty String
NULL inokosha chaizvo munyika ye databases, asi chinhu chinotanga vatangi vanovhiringidza.
Paunoona kukosha kweNULL, shandure se "zvisingazivikanwi." Kana huwandu ipo NULL, izvozvo hazvireve kuti zvinoreva zero. Saizvozvowo, kana nhamba yepavaraidza ichibata kukosha kweNULL , haireve kuti hapana kukosha kwakakodzera - haisi kungozivikanwa.
Semuenzaniso, funga dhizinesi rine mashoko pamusoro pevana vanoenda kune imwe chikoro. Kana munhu akapinda murekhodi asingazivi zera remudzidzi, kukosha kweNULL kunoshandiswa kuratidza "asingazive" nzvimbo inoshandiswa. Mudzidzi zvirokwazvo ane zera - hazvisati zviripo mune databata.
04 of 05
Kuchinja mahwendefa kuDatabases Kunopedza Nguva
Kana iwe uine matani e data akachengetwa muMicrosoft Excel kana mamwe mafaira ekuparadzira, iwe unogona kuzviponesa makomo ezuva nekushandura aya mahwendefa mumatafura e database.
Verenga tutori redu paChirving Excel Spreadsheets kuti Uwane Databases kuti utange.
05 of 05
Zvose MaDhipatimendi eDashatimendi HAAKASIKWA Akaenzana
Kune mazita akawanda akasiyana-siyana kunze uko, ose ayo anopa zvakasiyana-siyana zvakasiyana-siyana pamitambo yakasiyana yemitengo.
Zvimwe zvizere-zvinoshandiswa zvebhizimisi databases zvakagadzirirwa kuchengetedza makuru makuru ekuchengetedza mabasa anoshumira mabhizinesi emarudzi akawanda. Zvimwe ivhesi yedhesi dzakanaka zvakakodzerwa nekutsvakurudza zvinyorwa zvechechi duku neyese kana vaviri vashandisi.
Bhizimisi rako rinodikanwa rinotora nzvimbo yakakodzera yedhipatimendi yezvinodiwa zvako. Ona Database Software Options kuti uwane mamwe mashoko, pamwe chete neurongwa rwedu rweWorld Free Online Database Creators .