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1. Suppose we are to design a registrar's database to store information about students, courses, the courses students have taken, and the grades students have gotten in these courses. Courses have a number, a department, and a title, for example, "CS101: Introduction to computing" has department = CS, number = 101, and title = "Introduction to Computing." Numbers are assigned by departments, and different departments may use the same number. Students are represented by their (unique) student ID and their name. "Enrollments" each consist of a course, a student who took that course, and the grade the student got in the course.
a. Draw an E/R diagram that represents this database structure correctly.
b Convert the E/R diagram of part a into a relational schema.
How many copies of the book titled „The big magic? are owned by the local library whose name is "Newtown" library?
You have a company, specializing in managing technology solutions. you have ben just hired by big firm to execute a well-planned strategy.
MGMT321 Group Project: Create the following documents for the proposed system and deliver each SDLC documents by the end of each designated module, as shown below
Show the REA diagram using Microsoft Word
You have a file which contains credit card records. Each record contains field for the card number, expiration date, and name of card holder. Explain what primary problem you try to solve is.
Create a report which identifies five most expensive bicycles. The report must list bicycles in descending order from most expensive to lease expensive, the quantity on hand for each, and the markup percentage for each.
It is not uncommon to have to access the data which reside in different tables, especially when formulating a report.
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.
Using data mining, it is possible to gather information which has been buried that can be manipulated and cross indexed which could be a valuable information gathering technique for entities.
determine the functional dependencies that exist in the following table. After determining the functional dependencies, convert this table to an equivalent collection of tables.
The data dictionary serves as an important data management tool by? assigning attributes to the data, maintaining data in updated form.
Create a query that spans both tables. Eliminate redundant fields. Modify the Query to select only those Customers that had service dates in October and November 2006.
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