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1. Construct an entity-relationship (ER) model for the database. Make sure you include in your model details of entities, relationships, attributes, keys and limits in participation. Ensure that you give adequate justification for the assumptions that you make in designing your entity-relationship model and include any important integrity constraints (business rules).
2. Show by providing SQL statements, that all of the ‘dot points' in the Operations section can be produced from an implementation of your ER diagrams. Sometimes you may need to use more than one SQL statement, and you should explain how one SQL statement provides information needed by the subsequent SQL statement. NOTE: You don't have to actually create the database and run the queries, this is a thought exercise to show that the queries are possible.
Investigate how databases solve multiple concurrent data management issues comprising lost updates, deadlocks and different kinds of lock management styles.
Create a database design (schema) based on the following problem description.
creating database structure using SQL
Assume you were a newly hired IT Security Manager at a software development company that in the past hasn't paid much attention to security, especially in its database development processes.
Course: data mining. Require a 7 page essay on subjects: Warehouse Architectures: the paper requires to contain information about centralized, federated, and tiered data warehouse.
Dual Assessment of Data Quality in Customer Databases,Journal of Data and Information Quality (JDIQ), Volume 1 Issue 3, December 2009, Adir Even, G. Shankaranarayanan.
How would you change the current design and how does your new design address the problems you have identified with the current design.
Suggest how to implement direct-address table in which keys of stored elements don't require to be distinct and elements can have satellite data.
Use technology and information resources to research issues in database systems. Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.
Write a 2 page research paper (excluding the title page) on the Turing and von Neumann models. Compare and contrast each and discuss which model is better and why.
Construct a query that can be used on a report for determining how many days the customer's invoice will require payment if total amount due is within 45 days. Provide a copy of your working code as part of the paper.
Looking at the predictive accuracy (Percent correct) results for tree learning on these data sets, has learning improved accuracy over the baseline ?
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