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1. How are recursive relationships handled?
2. Discuss surrogate keys.
3. Describe the six default referential integrity actions.
4. How are N:M relationships implemented?
5. Why are null values ambiguous?
Develop a crow's foot ERD using Oracle Data Modeler or ER assistant that captures the following requirements: An employee has a unique employee number, a name, a position, and an optional office number.
Create table design metadata specifications in a Microsoft® Excel® spreadsheet based on your ERD. Indicate primary keys, foreign keys, and new attributes as in the entity relationship diagram.
Determine the benefits of data mining to the businesses when employing: Predictive analytics to understand the behavior of customer
a prestigious university has recently implemented a consolidation strategy that will require it to centralize their
Draw an Entity Relationship diagram for the system and Identify the table design for the database displaying all the fields/attributes. Ensure that all tables are in 3NF. You also need to identify the primary keys and foreign keys, where applicable..
Explain the following terms brie?y: attribute, domain, entity, relation-ship, entity set, relationship set, one-to-many relationship, many-to-many relationship, participation constraint, overlap constraint, covering constraint, weak entity set, aggre..
You must design the network requirements for the XYZ company. As the network consultant you will be required to develop a plan for the company network, including all costs.
1. Recommend at least three (3) specific tasks that could be performed to improve the quality of datasets, using the Software Development Life Cycle (SDLC) methodology. Include a thorough description of each activity per each phase
In 250 - 300 words describe role of a database administrator and the tasks performed by this role. Also, describe why this role is important in Database Management.
question 1 consider that you have been presented with the subsequent relation for the baxter aviation database charters
The ASN database and Web site were created and are maintained by two individuals. The database might be complete and accurate, or it might not be. To what extent should you rely on these data?
Based on the description of the Clearwater Traders database, determine the appropriate constraints for each table
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