Technology macmiilka-server

technology macmiilka-server bixisaa laba hannaan madax banaan lalana - server iyo macmiilka, xidhiidhka ka dhexeeya iyaga ka badan shabakad.

Server waxaa loo yaqaan habka masuul ka ah taageerada database ah iyo nidaamka faylka, iyo macaamiisha - geeddi in codsiga oo sugaysaa diri jawaab ka server ka.

model Client-server waxaa loo isticmaalaa in dhismaha nidaamka processing macluumaad ku saleysan database ah, iyo sidoo kale nidaamka boostada. Waxaa sidaas lagu magacaabo naqshadaha file-server waa in si weyn u kala duwan ka soo macmiilka-server ka.

Data ee nidaamka server file kaydiyaa on server file a (Novell NetWare ama WindowsNT Server), oo ay ka baaraandegi marayo hawlgalka qaateen ah "database desktop", sida Access, is, FoxPro, iwm

Database yaal Kundarbetsplats ah, iyo macluumaadka ku salaysayn khalkhalgelinta ay fuliyeen dhowr habka madax banaan oo aan habaysnayn. Dhammaan xogta sidaas lagu kala qaado ka badan server network si Kundarbetsplats ah, taas oo yaraysa xawaaraha of processing macluumaad ah.

technology macmiilka-server la fuliyo hawlaha oo ka mid ah codsiyada laba (ugu yaraan) - macaamiisha iyo server in wadaagaan hawlaha ka dhexeeya iyaga. Wixii kaydinta iyo khalkhalgelinta si toos ah server xogta jawaab, tusaale ka mid ah kaas oo noqon kara SQLServer, Oracle, Sybase, iyo kuwa kale.

interface user wuxuu bixiyaa dhismaha macmiilka ku salaysan kuwaas oo ay isticmaalaan qalab gaar ah ama database desktop. processing xogta macquul ah waxaa toogasho qayb ahaan on macmiilka, iyo qayb ahaan on server a. Samaynta codsi ah in server la sameeyaa by macmiilka, sida caadiga ah ee luqadda SQL ah. codsiyada la helay baaraandegi by server iyo macmiilka (s), waxaa natiijada la soo noqdeen.

Xogta waxaa la isku meel yihiin meesha ay ku kaydsan - on server ka, si xaddi weyn oo iyaga ka mid ma waxaa loo dirayaa guud ahaan shabakadda.

Faa'iidooyinka naqshadaha macmiilka-server a

technology macmiilka-server keentaa macluumaadka nidaamka tayada sida:

• halaynta

beddelid Data waxaa la sameeyaa server database isticmaalaya hab macaamil in imparts guryaha celcelis ahaan hawlaha sida: 1) atomicity, kaas oo bixiya sharafta xogta macaamil kasta oo dhameystiraya; 2) madaxbanaanida macaamil ah ee isticmaala kala duwan; 3) khalad dulqaad - badbaadinayo natiijada macaamil.

• Scalability, ie, awoodda System ma ku xiran yahay tirada dadka isticmaalaya iyo xaddiga macluumaadka aan badalayn software loo isticmaalo.

technology macmiilka-server taageertaa kun oo dadka isticmaala iyo gigabytes macluumaadka at madal hardware ku haboon.

• Security, ie, ilaalinta xogta lagu kalsoonaan karo ka haysani.
• Dabacsanaan. In codsiyada in la xogta ka shaqeeyaan, qoondeeyo layers macquul ah: interface user a; Xeerarka of processing macquulka; maamulka xogta.

Sida horeba loo xusay, technology file-server ah, oo dhan saddex lakab lagu daro galay codsiga hal mabda'a in waddaa on Kundarbetsplats ah, iyo dhammaan isbeddellada in layers daruuri u wadin inuu soo celinta, ka mid ah codsiga, versions kala duwan oo ka mid ah macmiilka iyo server ah, oo aad rabto si ay u fuliyaan casriyaynta software on dhammaan ka qaateen .

technology Client-server in codsiga laba-tier ah siisaa hawlaha oo dhan, waayo, formation of interface user on macmiilka, iyo dhammaan hawlaha maamulka database macluumaadka - on server a, xeerka ganacsi hirgeliyaan laga yaabaa in labada server iyo macmiilka.

codsiga saddex heer-ogolaanaya heerka dhexe, oo dhaqan gelisa sharciyada ganacsiga, kuwaas oo ah qaybaha ugu variable.

heerarka Multiple ogolaan dabacsan oo kharash-ool ah la qabsado codsiyada hadda jira shuruudaha ganacsiga si joogto ah updatable.