Usashandisa ZIP code kana Social Security nhamba
Databases dzinotsvaga pazvikomborero zvekuchengetedza, kutarisa, nekuenzanisa kana kuumba ukama pakati pezvinyorwa. Kana iwe wakanga uchitarisana nenhepfenyuro kwekanguva, iwe wakambonzwa nezve marudzi akasiyana-siyana ekiyi: makiyi epakutanga, zvigaro zvekutsvaga , uye zvigori zvekunze . Paunenge uumba tafura itsva ye database, unobvunzwa kusarudza chinhu chimwe chekutanga chinonyanya kuzivisa rega rega rakachengetwa mutafura iyoyo.
Chikonzero nei Chinyorwa Chekutanga Chinokosha
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 zvichibvira kuti mbiri dzakanyorwa-yapfuura, zvoga, kana zveramangwana-dzinogona kugovana zvakakosha kune imwe chiitiko, ichisarudzo chisina kunaka kwekona yekutanga.
Chimwe chinhu chakakosha chekiyi yekutanga ndiyo kushandiswa kwayo nemamwe mabheji anowananisa naro mune dheseti yehukama. Muchikamu chino, chinhu chikuru chinonyanya kuita sechinangwa chemukati. Nemhaka yeikudzivirirana, chinangwa chikuru chinofanira kuvapo apo rekodhi yakasikwa, uye haigoni kuchinja.
Zvisarudzo Zvisarudzo zveKey Primary Keys
Zvimwe vanhu vangafunga kuti sarudzo yakananga yekiyi yekutanga inogona kunge iri chisarudzo chisina kunaka pane. Heano mienzaniso mishomanana:
- Mapepa epikiti haaiti zvigadzirwa zvepamusoro zvefurafura yemataundi. Kana iwe uri kugadzira tafura yekuona zviri nyore yemaguta, ZIP code inoratidzika seyiyo inonyanya kukosha. Zvisinei, pakutsvakurudza mberi, iwe ungaona kuti kupfuura guta rimwe chete inogovera imwe Code. Semuenzaniso, misha yeNew Jersey yeNepune, Neptune City, Tinton Falls, uye Wall Township vose vanogovera ZIP code 07753.
- Nzvimbo dzekuchengetedzwa kwehupfumi nhamba hadziiti zvigaro zvepamusoro zvakanaka zvezvikonzero zvakawanda. Vanhu vakawanda vanofunga kuti SSN yavo ndeyega uye haifariri kuti ionekwe pachena nevashandi vepa database. Vamwe vanhu havana SSN-vatorwa kana vatorwa vasati vambowana kadhi Social Security. SSNs inogonawo kushandiswa zvakare mushure mekufa kweumwe munhu. Mumwe munhu angave ane anopfuura imwe SSN munguva yehupenyu apo Social Security Administration inotora nhamba itsva mumamiriro ekunyengera kana kubhakwa kwekuziva.
- E-mail adresses zvakare isarudzo yakashata yekona yekutanga. Kunyange zvazvo vakasiyana, vanogona kuchinja munguva. Uyezve, havasi vose vane email yekero.
Kusarudza Chinobudirira Chinokosha
Saka, chinokonzerei chinhu chinokosha chekutanga? Muzviitiko zvakawanda, tendeukira kune yako database database kuti utsigire.
Nzira yakanakisisa yekugadzira zvinyorwa zvekushandisa ndeyokushandisa mukati mechikamu chekutanga chekutanga. Your database management system rinowanzoita chiziviso chakasiyana-siyana chisinganzwisisi kunze kwedhizha ye database. Semuenzaniso, unogona kushandisa shanduro yeDynamic AutoNumber yeDynamic kuti upe munda unonzi RecordID. Nhamba yeDotNumber yedhigiri inowedzera huwandu mumunda nguva dzose kana iwe uchigadzira rekodhi. Kunyange zvazvo nhamba pachayo isina zvazvinobatsira, inopa nzira yakatendeka yokutsvaga rekodhi rimwe mumibvunzo.
Chinhu chikuru chakanakisisa chinowanzopfupika, chinoshandisa nhamba, uye chinodzivirira mavara chaiwo kana kusanganiswa kwemavara uye mazita mashoma kuti zvive nyore kukurumidza kuona zvinyorwa uye kuenzanisa.