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Consider a simple student registration. Specifically we want to support the tasks of students registering for or withdrawing from a class. To do this, the system will need to record data about what entities? What specific data about the entities will need to be stored? What is the cardinality between students and courses? Diagram the data model.
The local library wants to update its book check process. To do this, the system will need to record data about what entities? What specific data about the entities will need to be stored? Diagram the data model.
What is the name for a column that uniquely identifies a record? What is the name for a unique key that is constructed from multiple columns
Explain how much the modulating signal power is required to generate 100 percent modulation? What is the approximate center frequency of filter required to pass the lower sideband?
Complete following task. In each exercise, represent answer in both DBDL and with diagram. You may use any of styles for diagram. Create database to produce following reports. Do not use any surrogate keys in design.
How many copies of the book titled „The big magic? are owned by the local library whose name is "Newtown" library?
Open the data file Reservations17 19. Create a form based on the Reservations table. Use the form to Own folder, and then copy the navigate to the record with Reservations table
What is file organization? what are file organization techniques.explain in detail? explain random file organization technique, multikey file organization technique?
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.
Write down your subquery MAX_CALC_SAL. Name columns in result JOB_TITLE and JOB_TOTAL, and sort result on JOB_TOTAL in descending order.
This Final Project Paper must be a technical paper on Database topics that have been pre-approved in earlier weeks by your instructor, using knowledge gained in the course. A general paper written for the common IT user or general reader is NOT ac..
Describe the research database or collection of research including the purpose and the subject matter it covers. Explain how the database relates to your topic of interest/question.
To complete this assignment, you will need to do data calculations. Remember to follow good database practice here by not saving your calculations as part of the data table itself (they should appear only in your queries).
With the obvious pace of current technology development, data continues to grow daily. Imagine that you are a Database Administrator for a large organization. Identify the primary decisions a Database Administrator must make in order to manage such d..
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