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What functions does a data dictionary perform?
In a (DBMS)data management system, the principal functions performed by the data dictionary are
I need help with some assignments
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
Add generation capabilities and/or tailor the built-in functionality of generator. This enables you to produce "all" the test data for the MySQL tables you produced in the previous
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What is the max. no. Of structures that can be included in a table or structure. Nine.
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
This assignment concerns the Research database. The database ER model is shown above, where attributes are omitted for clarity. The relational model for the database is: Departm
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
You are required to write a report which evaluates two of the following issues in relation to your case study database: a. Security issues b. Performance issues c. Backup
Objectives differentiate DDBMS and conventional DBMS; Describe Network topology for DDBMS; Describe the concepts of horizontal and vertical fragmentation; Descr
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