Video: SQL hauv SAP ABAP yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Qhib SQL ntawv muaj ib txheej ntawm ABAP cov nqe lus uas ua haujlwm ntawm lub hauv paus database hauv lub SAP Web AS ABAP . Cov txiaj ntsig ntawm kev ua haujlwm thiab cov lus yuam kev yog ywj siab ntawm cov ntaub ntawv hauv kev siv. Qhib SQL ntawv cov lus tsuas tuaj yeem ua haujlwm nrog cov ntxhuav database uas tau tsim nyob rau hauv ABAP Phau ntawv txhais lus.
Hais txog qhov no, SQL hauv SAP yog dab tsi?
SQL ntawv Stands rau Structured Query Language. Nws yog ib hom lus rau kev sib txuas lus nrog Relational database zoo li Oracle, MySQL thiab lwm yam. SQL ntawv yog siv los khaws, khaws thiab hloov kho cov ntaub ntawv hauv database. Los ntawm kev siv SQL hauv SAP HANA, peb tuaj yeem ua raws li txoj haujlwm- Schema txhais thiab siv (CREATE SCHEMA).
Open SQL hauv SAP ABAP yog dab tsi? Qhib SQL yog lub kaus lub sij hawm rau ib tug subset ntawm SQL ntawv paub siv ABAP cov nqe lus, suav nrog DML ib feem. Qhib SQL tuaj yeem siv los nyeem (SELECT) thiab hloov kho (INSERT, Hloov Kho, MODIFY, lossis DELETE) cov ntaub ntawv hauv cov ntaub ntawv database tau teev tseg hauv ABAP Phau ntawv txhais lus.
Tsis tas li ntawd, ABAP SQL yog dab tsi?
SAB AB - Qhib SQL ntawv Txheej txheem cej luam. Cov nqe lus ntawm Open SQL ntawv hloov dua siab tshiab rau database tshwj xeeb SQL ntawv hauv qhov qhib SQL ntawv interface ntawm lub database interface. Tom qab ntawd lawv raug xa mus rau qhov system database thiab ua tiav. Qhib SQL ntawv cov nqe lus tuaj yeem siv los nkag rau cov ntaub ntawv database uas tau tshaj tawm hauv ABAP Phau ntawv txhais lus.
Qhov txawv ntawm Qhib SQL thiab Native SQL hauv SAP ABAP yog dab tsi?
Qhib SQL tso cai rau koj nkag mus rau cov ntaub ntawv database tau tshaj tawm hauv ABAP Phau ntawv txhais lus tsis hais txog ntawm lub platform database uas koj R/3 System siv. Native SQL tso cai rau koj siv cov ntaub ntawv tshwj xeeb SQL ntawv nqe lus hauv ABAP qhov kev pab cuam. Yog tias koj qhov kev zov me nyuam yuav siv ntau dua ib lub platform database, tsuas yog siv Qhib SQL nqe lus.
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