程序代写代做代考 database Data Definition Language
Data Definition Language Website: mars.mu Session Name: BTLG5M 1 Relational model theories Oracle syntax User requirements Drawing conceptual ERD Business rules ERD notations Conceptu al ERD Drawing logical-le vel ERD Logical- level ERD Write database schema Database schema normalisation SQL general syntax • A single statement is ended with SEMICOLON. • Predefined KEYWORDs represent clauses […]
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