Dab tsi yog qhov system rov qab?
Dab tsi yog qhov system rov qab?

Video: Dab tsi yog qhov system rov qab?

Video: Dab tsi yog qhov system rov qab?
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Backend systems yog koom haum tshuab uas yog siv los khiav ib lub tuam txhab xws li tshuab los tswj cov kev txiav txim, cov khoom muag thiab kev xa khoom. Backend systems txhawb lub tuam txhab rov qab chaw ua haujlwm . Qhov no qhov system sau cov tswv yim los ntawm cov neeg siv lossis lwm yam tshuab kev ua haujlwm.

Kuj kom paub yog, dab tsi yog rov qab kawg hauv DBMS?

Rov qab - kawg database. Los ntawm Wikipedia, thefree encyclopedia. A rov qab - kawg database yog ib tug database uas yog nkag los ntawm cov neeg siv indirectly los ntawm ib tug externalapplication es tsis yog los ntawm daim ntawv thov programming khaws cia nyob rau hauv lub database nws tus kheej los yog los ntawm cov theem qis manipulation ntawm cov ntaub ntawv (piv txwv li los ntawm SQL commands).

Kuj Paub, qhov kawg ntawm lub vev xaib yog dab tsi? Cov rov qab kawg ntawm ib lub vev xaib muaj ib tug server, ib daim ntawv thov, thiab ib tug database. A rov qab - kawg developerbuilds thiab tswj cov thev naus laus zis uas ua rau cov khoom sib txuas uas, ua ke, ua kom cov neeg siv-fab sab ntawm lub vev xaib kom txawm muaj nyob rau hauv thawj qhov chaw.

Tom qab ntawd, lo lus nug yog, dab tsi yog rov qab xaus?

Cov qab kawg yog hais txog qhov chaw ntawm daim ntawv thov computer lossis ib qho program code uas tso cai rau nws ua haujlwm thiab tsis tuaj yeem nkag los ntawm tus neeg siv. Feem ntau cov ntaub ntawv thiab kev khiav hauj lwm syntax yog khaws cia thiab nkag mus rau hauv qab kawg ntawm lub computer system.

Dab tsi yog qhov txawv ntawm frontend thiab backend?

Frontend hais txog tus neeg siv khoom sab, whereas thaub qab hais txog server-sab ntawm daim ntawv thov. Ob leeg tseem ceeb heev rau kev txhim kho lub vev xaib, tab sis lawv lub luag haujlwm, lub luag haujlwm thiab ib puag ncig lawv ua haujlwm sib txawv kiag li. Frontend yog qhov uas cov neeg siv pom whereas thaub qab yog li cas txhua yam ua haujlwm.

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