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What is the purpose of a cross join in MDX? Specifically, what gets returned as the result of a cross join.
Database Distribution Strategy. For this assignment, you will design and develop a distributed database infrastructure for an organization of your choice. You may use the database you created in another unit or you may choose to create a new datab..
You have decided to push the envelope and implement the pays auditing model. Provide a step-by-step summary for imple¬menting this model.
For each table argue whether or not interference with another transaction is possible. Illustrate concurrency control method using two phase locking.
Using ER Assist Tool to draw the ER Diagram for the Company Database. The Requirements were discussed in the class.
Find candidate keys for the relation
Write out the steps of the dialog between the user and the system for the use case Place new order for nursing home employees.
Modify the XML document in Exercise 2 to include a namespace URL from which the elements of the XML document in Exercise 3 will be associated with. Make any changes to the XML document that are necessary as a result of the namespace URL inclusion.
Define main key and foreign key. Represent graphically the relational data base, with its tables and connections of foreign keys. Follow this rule: 1:N connections is represented table with just one line above and table with multiple lines below.
What rules would have to be enforced based on entity type? Choose one entity type and discuss what enforcement is needed by the database or application.
Describe relationships with example. Also illustrate degree of relationship for that example. What do you mean by locks. Write dow a binary lock function.
Customer Relationship Management
Suppose that the security model is required for protection of information in class. Using NSTISSC model, analyze each of cells (i.e. 27 cells related with McCumber model).
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