Question: Describe what is schema, sub schema, DML and DDL ? What is Relation Database Management System (RDBMS) ? What is Entity Relationship Diagram (ERD) ?

Describe what is schema, sub schema, DML and DDL ?
What is Relation Database Management System (RDBMS) ?
What is Entity Relationship Diagram (ERD) ?

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Schema A schema in the context of databases refers to the logical view of the entire database It defines how the data is organized and how relationshi... View full answer

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