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Question 1:
Research the definition of a "minimal cover". Explain it in your own words and give an example.
Question 2:
Consider the following relation R with sample data where names are unique:
MOTHER
CHILD
GIFT
DATE
OCCASION
Linda
Jim
Bike
1-20-2009
Birthday
Sweater
12-25-2008
Christmas
CD
3-8-2007
Grade Report
Mary
Game
Book
2-20-2006
Susan
David
7-20-2009
Shoes
8-30-2009
Back to School
1- What functional dependencies can you conclude from the data above?
2- What is the highest normal form R is in?
3- If R is not in BCNF, then decompose R to become in BCNF and show that all functional dependencies still hold.
Create a class called TestSystem and write atest method which tests your system using a scenario. In your report document, describe the testing scenario and the expected behaviour of your system. Provide screen shots of your system testing in your..
create the flowchart of the above business processes. The assignment will be completed in 2 parts:1. AS-IS Model2.TO-BE Model once feedback is given from Professor after completing Part 1 (AS-IS Model)
Create an ERD and relatioal schema in third normal form based upon the following business rules. (Hint: ensure that all attributes are FULLY DETERMINED by the primary key.) Don't forget to place your normalization arrows on your relational schema.
Draw an E-R Diagram and draw an E-R Diagram for Student Information System.
At this point in the design process, you would have a detailed physical schema created for a database. How would you approach converting your schema into a database, complete with sample data? Explain your approach in two to three paragraphs.
assignment 3.2nbspdatabase notation is not consistent. you have probably seen that already when you tried to create an
Can Oracle have multiple group functions in the same SELECT list of query (i.e can we do a COUNT and AVG)? Let us assume we wanted to find lowest, highest, average.
Write a program to sort these back into a single file. Oh, and we only have a few nanoseconds to do it, so you'd better do it with pthreads!
Create 3 rows of data for each table ensuring that the referential integrity is valid and add the 30 rows of data to the appropriate table in your database (using any appropriate method available).
Examples for small n are given bellow, where a small square box represents an unsuccessful search. Prove that leaves of any binary search tree are located in the bottom two levels.
To apply and consolidate skills acquired in the requirement and analysis disciplines through analysis of a simple case study, and to express the results through the relevant UML diagrams. ITC203
Why are these so significant yet so frequently ignored by developers? Write the long term problems when these constraints are not implemented? "
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