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Create an XML file that describes 3 product elements; each product has three sub-elements: id, name, and description. Also create a DTD file and an XSD file that specify the schemas of the XML file, respectively.
For each table argue whether or not interference with another transaction is possible. Illustrate concurrency control method using two phase locking.
Explain in detail with supporting illustrations the six stages of the problem solving process and explain when the choice for using electronic spreadsheets is the preferred tool of choice.
Create a state transition diagram that describes typical student states and how they change based on specific actions and events.
Indicate the changes (using the shorthand representation) that you would need to make to the original premiere products database desing to support the following requirements.
Explain efficient algorithm that, provided edge-labeled graph G with distinguished vertex v0 and sequence s = σ1, σ2, ..., σk of characters from Σ, returns path in G which begins at v0.
Consider a case that is not described above, but could happen in the business of the ABS. Please explain the case and why it might occur and based on the case you proposed, modify your design of the ABS database accordingly.
Describe a minimum of three (3) heuristics to optimize Queries - provide the SQL code (and screen shots)
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.
Create a database design specification (Enhanced Entity Relationship Diagram (EERD) and Relational Data Model (RDM)) from the given business description. The RDM must be in 3rd Normal Form.
Describe the entity-relationship model. How are entities, relationships, and attributes represented in this model? What is a composite entity? Describe the approach to diagrams that uses a crow's foot.
What are the functional dependencies among the data represented in this first normal form relation?
Analyse and comprehend a provided ER diagram and Database Schema and implement a database based on the provided ER diagram and Database Schema
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