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Question: Use a co-related sub-query to return one row per customer, representing the customer's oldest order (the one with the earliest date).
Each row should add these three columns: EmailAddress, OrderID, and OrderDate.
You need to implement this query and provide the output.
question 1a explain the use of facts dimensions and attributes in a star schema model.b in relation to a fact table
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
What is your recommendation for this policy and process? Does the reason for leaving the company affect the recommendation? Why or why not? Be specific and explain your reasoning.
Develop an E/R diagram to represent the conceptual database scheme for the CSRSS and list the information of all doctors who are specialized is heart surgery.
Using the Hillside School Case Study and your stage 1, 2, and 3 projects, develop a decision paper that serves as a system "sign-over" document for system deployment and transfer of responsibility for the newly designed and implemented system to t..
A few years have passed, and the restaurant has grown to become a national restaurant chain. Now, they are concerned that remote and branch offices and restaurants in all fifty states will not have ready access to the data.
Develop a model to store questionnaires and its underlying questions. A questionnaire records questionnaire name, primary contact name, start date and expected end date.
Determine airports with late flights to Toronto on a big plane. "Late" means departing after 9:00pm; "big" means with capacity 150 passengers or more
your company has put in the request for a new database system and you have been tasked with architecting the security
question 1there are six major types of information systems which organisations use in their operations. discuss how
List the names of agents that placed an order for customer C003 or customer C006. List all pair of products names that are in the same city, along with their city name.
For each table argue whether or not interference with another transaction is possible. Illustrate concurrency control method using two phase locking.
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