SAP Data class yog dab tsi?
SAP Data class yog dab tsi?

Video: SAP Data class yog dab tsi?

Video: SAP Data class yog dab tsi?
Video: Vaajtswv Lub Tebchaws/The Kingdom Of God - Nyaj Xuv Xyooj 2024, Kaum ib hlis
Anonim

Cov ntaub ntawv chav kawm . Cov chav kawm ntaub ntawv txhais lub cev cheeb tsam ntawm lub database (rau ORACLE lub TABLESPACE) nyob rau hauv uas koj lub rooj yog logically khaws cia. Yog koj xaiv a chav kawm ntaub ntawv kom raug, koj lub rooj yuav cia li muab tso rau hauv qhov chaw kom raug thaum nws tsim nyob rau hauv lub database.

Ua kom pom qhov no, Dab tsi yog chav kawm Data?

A chav kawm ntaub ntawv hais txog a chav kawm uas muaj tsuas yog teb thiab crude txoj kev nkag mus rau lawv (getters thiab setters). Cov no tsuas yog ntim rau cov ntaub ntawv siv los ntawm lwm tus chav kawm.

Qhov thib ob, dab tsi yog cov ntaub ntawv hauv SAP? Cov ntaub ntawv piav qhia txog tus kheej qhov chaw nyob hauv AB Data Phau ntawv txhais lus. Lawv yog cov tsawg tshaj plaws indivisible units ntawm cov complex hom, thiab lawv yog siv los txhais hom rooj teb, qauv tivthaiv los yog kab hom ntawm lub rooj. Cov ntaub ntawv piav qhia txog hom theem pib lossis hom kev siv.

Kuj paub yog, qhov txawv ntawm cov ntaub ntawv chav kawm thiab chav xa khoom yog dab tsi?

Cov rooj tau muab rau cov no cov ntaub ntawv kawm khaws cia hauv a tablespace rau cov neeg siv kev txhim kho. Cov chav xa khoom tswj kev thauj ntawm lub rooj cov ntaub ntawv rau kev txhim kho, hloov kho, cov neeg siv khoom luam thiab thaum thauj nruab nrab cov neeg siv khoom systems. Cov chav xa khoom kuj siv tau hauv ncua lub rooj tu.

Dab tsi yog chav kawm cov ntaub ntawv thiab qeb loj hauv ABAP?

0. Cov Cov ntaub ntawv chav kawm txiav txim siab nyob rau hauv lub rooj qhov chaw lub rooj yog khaws cia thaum nws tsim nyob rau hauv lub database. Cov Loj (0-4) qeb piav qhia txog qhov yuav tsum tau muaj qhov chaw ntawm lub rooj hauv cov ntaub ntawv. Cov chav kawm ntaub ntawv : APPL0- Master cov ntaub ntawv ( cov ntaub ntawv nquag nkag tau tab sis tsis tshua hloov tshiab).

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