Muaj pes tsawg tus cim yuav lub npe teb hauv kev nkag mus muaj?

Video: Muaj pes tsawg tus cim yuav lub npe teb hauv kev nkag mus muaj?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

Rooj

Yam ntxwv	Qhov siab tshaj plaws
Tus naj npawb ntawm cov cim hauv lub npe lub rooj	64
Tus naj npawb ntawm cov cim hauv lub npe teb	64
Tus naj npawb ntawm cov teb hauv ib lub rooj	255
Tus naj npawb ntawm cov rooj qhib	2, 048 suav nrog cov rooj sib txuas thiab cov rooj qhib sab hauv los ntawm Access

Xav txog qhov no, yuav ua li cas muaj pes tsawg tus cim yuav lub npe teb hauv kev nkag tau suav nrog cov ntawv lej?

Cov ntawv nyeem - Hom ntawv ua ntej, hom ntawv tso cai rau kev sib xyaw ntawm cov ntawv thiab cov lej mus txog qhov siab tshaj plaws 255 lus rau cov ntaub ntawv teb. Memo - Ib hom ntawv nyeem uas khaws txog 64,000 cim.

Tsis tas li ntawd, qhov ntev ntawm tus cwj pwm ntev ntawm lub npe teb yog dab tsi? 255 lus

Tsuas yog li ntawd, muaj pes tsawg tus cim yuav lub npe teb hauv lub rooj Access muaj?

Cov npe ntawm thaj chaw, kev tswj hwm, thiab cov khoom hauv Microsoft Access desktop databases: tuaj yeem mus txog 64 npe ntev.

Cov npe teb puas tuaj yeem muaj tus lej nkag mus?

Hauv Nkag mus , npe teb ua tsis tau muaj cov lej . Ib tus cim tshwj xeeb tseem hu ua tus yuam sij tseem ceeb. Navigation Pane muaj ib daim ntawv teev tag nrho cov khoom nyob rau hauv lub database. Tus naj npawb max ntawm cov cim tso cai nyob rau hauv lub teb nws cov ntaub ntawv hom ntawv luv luv yog 255 cim.

Pom zoo:

Muaj pes tsawg theem ntawm indirection nyob rau hauv pointers koj muaj peev xwm muaj nyob rau hauv ib qho kev tshaj tawm?

Koj puas tuaj yeem muaj nyob rau hauv ib qho kev tshaj tawm? cov lus teb yog "tsawg kawg 12." txhawb ntxiv. ntawm saj, tab sis muaj qhov txwv. Muaj ob theem ntawm kev taw qhia (tus taw tes rau tus taw tes rau ib yam dab tsi) yog qhov ntau