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Problem 1:
Suppose you have a relation schema about teaching classes that has the following attributes: Class, Instructor, Time and Room
Based on your understanding of this scenario, what functional dependencies can you identify that hold on this relation?
Problem 2:
Research the definition of a "minimal cover". Explain it in your own words and give an example.
You have been requested to give preliminary information on the data requirements for a GIS which is to be used to hold inventory of continental scale vegetation maps for coarse scale land surface
our current database uses dictionary-managed tablespaces. In running various performance tuning scripts, you have discovered that one of these tablespaces seems to have run out of space long before you calculated that it would.
Design the Update trigger on Part table which raises an error string if Count field of updated row has a higher value than value prior to Update.
When increasing cardinalities from 1:N to N:M, which of the given steps are included in process the order of steps listed below is not relevant, only steps themselves?
Indicate changes you require to make to design of Premiere Products database to support following situation: There is no relationship between customers and sales reps.
Select an appropriate statistical measure to compare consistency of sales. Make the calculations and write a report. In your calculations, include the mean sales for each salesperson.
Input names of students from the user, terminated by ZZZ, and create a data file GRADES with records of the form.
There are many kinds of relationships in a design model of a database. Why is it important to classify each of these types in an ERD Model?
Create tables in 3NF. As you create the database, include different codes for at least three of the fields. Use sample data to populate fields for at least three records in each table.
determine the functional dependencies that exist in the following table. After determining the functional dependencies, convert this table to an equivalent collection of tables.
Its a lead a project that will implement a new learning management system for your university. You have two key tasks: Task 1: Investigate learning management software packages that are available through application service providers.
First construct a Data Warehouse Bus Matrix to identify the company's business processes and any likely Data Marts and design the star schema for any Data Marts you have identified.
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