Differentiate between ddl and dml languages

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Reference no: EM132971453

1. Discuss and elaborate with an example the roles of database management system and how it affects the business operations. Choose an organization from telecommunication field.

2. Compare and differentiate between DDL and DML languages with appropriate examples.

3. Design an entity-relationship model for a university with proper number of entities.

Reference no: EM132971453

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