Database vs Spreadsheet
Database thiab Spreadsheet yog ob txoj hauv kev uas tuaj yeem siv los tswj, khaws cia, khaws thiab tswj cov ntaub ntawv. Daim ntawv tshaj tawm yog ib daim ntawv thov uas tso cai rau cov neeg siv ua haujlwm ntawm daim ntawv tshaj tawm hluav taws xob zoo ib yam li daim ntawv sau nyiaj, qhov chaw khaws ntaub ntawv yog npaj rau kev teeb tsa yooj yim, khaws cia thiab khaws cov ntaub ntawv ntau. Hauv lwm lo lus, ib qho chaw khaws ntaub ntawv tuav cov ntaub ntawv tsim nyog (feem ntau hauv daim ntawv digital) rau ib lossis ntau tus neeg siv. Cov ntaub ntawv, feem ntau sau luv DB, raug cais raws li lawv cov ntsiab lus, xws li cov ntaub ntawv-ntawv, phau ntawv sau thiab cov ntaub ntawv.
Tshuaj ntsuab
Daim ntawv nthuav qhia yog daim ntawv thov software hauv computer uas tso cai rau cov neeg siv ua haujlwm ntawm GUI ib puag ncig zoo ib yam li daim ntawv sau nyiaj. Spreadsheet daim ntawv thov tso saib 2-D daim phiaj (lossis matrix) ntawm cov hlwb uas muaj cov kab thiab txhua kab simulating ib daim ntawv ua haujlwm. Txhua lub xovtooj tuaj yeem nkag mus rau peb hom ntsiab lus raws li cov ntawv nyeem, lej rau cov qauv. Formula yog ib lub tswv yim los xam tus nqi ntawm ib lub xov tooj ntawm tes uas siv cov ntsiab lus ntawm ob peb lwm lub hlwb. Formula tus nqi (tso tso rau ntawm lub xovtooj) tau hloov kho nws tus kheej txhua zaus ib qho ntawm lwm lub hlwb (uas yog siv los xam cov mis) hloov. Qhov no yog ib qho ntawm cov laj thawj vim li cas cov ntawv xov xwm hluav taws xob tau siv rau cov ntaub ntawv nyiaj txiag, vim tias tus neeg teb xov tooj tsis tas yuav hloov kho txhua lub xov tooj ntawm tes nyob ntawm ib qho kev hloov pauv rau daim ntawv tshaj tawm. Microsoft Excel, uas yog muab los ua ib feem ntawm Microsoft Office suite yog daim ntawv thov hluav taws xob nrov tshaj plaws hauv ntiaj teb. Qee lub sij hawm rov qab, Visical ntawm Apple II khoos phis tawj thiab Lotus 1-2-3 muaj kev lag luam loj tshaj plaws ntawm daim ntawv sau npe.
Database
A Database tej zaum yuav muaj ntau theem ntawm abstraction hauv nws cov architecture. Feem ntau, peb theem: sab nraud, tswv yim thiab sab hauv tsim cov database architecture. Sab nraud theem txhais tau li cas cov neeg siv saib cov ntaub ntawv. Ib lub database tuaj yeem muaj ntau qhov kev pom. Cov theem sab hauv txhais tau li cas cov ntaub ntawv khaws cia hauv lub cev. Lub tswv yim theem yog kev sib txuas lus nruab nrab ntawm cov theem sab hauv thiab sab nraud. Nws muab qhov tshwj xeeb saib ntawm cov ntaub ntawv tsis hais nws yuav khaws lossis saib li cas. Muaj ntau hom databases xws li Analytical databases, Data warehouses and Distributed databases. Cov ntaub ntawv (ntau dua, cov ntaub ntawv sib raug zoo) yog tsim los ntawm cov ntxhuav thiab lawv muaj kab thiab kab, zoo li cov ntawv nthuav dav hauv Excel. Txhua kab sib raug rau tus cwj pwm, thaum txhua kab sawv cev rau ib cov ntaub ntawv. Piv txwv li, hauv cov ntaub ntawv khaws cia cov neeg ua haujlwm cov ntaub ntawv ntawm lub tuam txhab, cov kab ntawv tuaj yeem muaj cov neeg ua haujlwm npe, tus neeg ua haujlwm ID thiab nyiaj hli, thaum ib kab sawv cev rau ib tus neeg ua haujlwm. Feem ntau ntawm cov databases tuaj nrog Database Management system (DBMS) uas ua rau nws yooj yim heev los tsim / tswj / teeb tsa cov ntaub ntawv.
Dab tsi yog qhov txawv ntawm Database thiab Spreadsheet?
Txawm tias cov ntaub ntawv thiab cov ntawv nthuav tawm yog ob txoj hauv kev tswj cov ntaub ntawv, lawv muaj lawv qhov zoo thiab qhov tsis zoo. Thaum nws los txog rau qhov yooj yim thiab yooj yim rau kev siv interfaces rau cov neeg siv tshiab, cov ntawv nthuav tawm yog qhov kev xaiv zoo dua li cov ntaub ntawv. Thaum siv los ua cov ntaub ntawv khaws cia, cov ntawv nthuav qhia muaj qhov tsis zoo ntawm cov ntaub ntawv. Piv txwv li, nws yog ib qho nyuaj heev los muab cov ntaub ntawv los ntawm cov lus nug siab me ntsis. Spreadsheets muab cov ntaub ntawv pov thawj tsawg kawg nkaus thiab tsis muaj cov txheej txheem tiv thaiv cov ntaub ntawv los tiv thaiv cov ntaub ntawv los ntawm cov neeg siv tsis zoo. Feem ntau, databases muab cov chaw zoo dua rau kev sib txuam. Tsis tas li ntawd, cov ntaub ntawv sib raug zoo yog qhov zoo dua ntawm kev khaws cov khoom ntawm ib qho chaw thiab tsis txhob rov ua dua.
