General tswv yim ntawm Access database

Niaj hnub nimno civilization yog nyob rau hauv dire xav tau ntawm qhov tuav thiab tswj loj tagnrho ntawm ntau haiv neeg cov ntaub ntawv. Tsis tas li ntawd, muaj ib tug xav rau lossi saib xyuas cov teebmeem ntawm lawv cov kev hloov mus rau lwm cov ntaub ntawv cov ntaub ntawv. Cov yooj yim tshaj plaws txoj kev uas yuav npaj tag nrho cov ntawm cov dab nyob rau hauv lub hauv daim ntawv ntawm ib tug database. Ib tug muab rau twj rau ib lub koom haum yuav ua tau ib tug nrov database pab cuam Access.

Yuav ua li cas yog ib tug DBMS

Ntau yam ntaub ntawv yuav tsum tau noj thiab muab cia rau hauv ib tug tabular daim ntawv. Nws feem ntau tshwm sim hais tias ib tug ob peb lub rooj muaj cov ntaub ntawv uas muaj feem xyuam rau txhua lwm yam nyob rau hauv ib txoj kev. Lub totality ntawm cov sib xyaw ntxhuav yog ib tug database.

Nyob rau hauv thiaj li yuav muaj lub peev xwm rau siab muab cov ntaub ntawv los ntawm ib tug database, koj yuav tsum tau ua queries. Nyob rau hauv thiaj li yuav pab txhawb lub kawm tiav ntawm thawj zaug ntaub ntawv puag, feem ntau yog siv tshwj xeeb uas tsim cov ntaub ntawv. Yuav kom automate txoj kev muaj rau ntxiv thiab siv macros nyob rau hauv tej rooj plaub. Tus sau los ntawm databases thiab lwm yam cuab yeej ntaub ntawv ib tug system hu ua ib tug DBMS - tswj system database. Ib qho piv txwv yuav ua tau Foxpro, Oracle, database Microsoft Access.

Lub ntsiab functions ntawm lub DBMS

Access DBMS ua lub nram qab no tseem ceeb functions:

- siv cov kev tsim nyog kev nqis tes ua uas muaj ntaub ntawv thiab cov qauv;

- tsim kom muaj kev mus ntawm lub rooj thiab cov ntaub ntawv poob lawm;

- muaj peev xwm ntxiv thov.

Tag nrho cov vam, uas yog muaj nyob rau hauv lub database MS Access arsenal, tsim los siab pab ob lub ntsiab lus qhia nyob rau hauv cov ntaub ntawv system. Qhov no koom haum tsim thiab kev hloov kho ntawm lub database qauv thiab ntau yam tsim nyog cov ntaub ntawv manipulations.

Lub ntsiab sib txawv Database Access

Muaj ntau lwm yam kev tswj systems uas yog siv los ntawm cov rau automate ua hauj lwm nrog databases, database Access yog ib qho yooj yim los mus kawm. Txij li thaum lub platform yog Russified, raws li zoo raws li ib tug txheej txheem rau tag nrho cov MS Office interface, txawm inexperienced neeg siv yuav tsis xav tias tej yam tsis xis nyob rau ntawm lub lub sij hawm ntawm nws kev loj hlob kev pab cuam.

Nyob rau tib lub sij hawm, saib yog ib tug ua kom tiav qhov kev pab cuam kev tswj cov ntaub ntawv poob lawm rau tag nrho cov tsim nyog cwj pwm. Tsim ib tug system yuav siv tsis tau tsuas yog rau ib tug hluas computer, tab sis kuj nrog rau hauv zos tes hauj lwm.

Access txuj

Qhov kev pab no tso cai rau koj los mus tsim thawj khoom nyob rau hauv daim ntawv ntawm lub rooj nrog teb ntawm ntau hom, xws li numeric, ntawv nyeem, graphics, txawm lub Ole teb.

Ntxiv mus, lub kev sib raug zoo ntawm cov ntxhuav yog muab, nyob rau cascade txhawb cov ntaub ntawv hloov tshiab thiab cov cascade rho tawm yog tias tsim nyog.

Tag nrho cov yooj yim cov ntaub ntawv ua hauj lwm xws li kev nkag mus kawm, saib, khaws cia, muab kho dua, sorting, filtering, kom tau kuaj. Tsis tas li ntawd indexing ua nyob rau hauv xaiv teb, tswj cov lus qhia nkag mus hauv.

Thaum tiav muab xam rau ntawm teb yuav siv tau siv ntau yam qauv.

Database Access - ib tug yooj yim thiab to taub qhov kev pab cuam uas muaj tag nrho cov yam ntxwv ntawm cov kev daim ntaub ntawv.