please let me know if you have Q
Unformatted Attachment Preview
Homework#3 (Midterm Exam)
For this assignment, use Oracle or MySQL.
Hand in the printouts of your interaction with the DBMS. Please, staple the printouts. On the cover page,
indicate the class number, your name, student ID, and the DBMS you used. The simple manuals are
available at the course web site and the DBMS products web site.
[20-point] Create the database of HW#2. Determine an appropriate data type for each attribute. Use
“create table~” statements and create index~ statements to create the tables and appropriate index
structures. Note that in SQL-92 and 99 (aka SQL II and III) standards (and many DBMS
implementations), all primary key attributes are implicitly declared to be “not null”. However, in this
assignment, declare primary key attributes to be “not null” explicitly. In SQL, foreign key attributes are
allowed to be null. However, sometimes, to satisfy “total participation” in ER-diagram, related foreign
key attributes should be declared to be “not null”. Print the statements you used to create this database
and the results of them.
[10-point] Populate your database by inserting 10 or more tuples into each table.
[20-point] Create the following queries using SQL:
Write the queries in the HW#2 in SQL. Print the SQL statements of your queries as well as the results
of your queries.
[20-point] Create a database with the following tables (relations):
supplier (SupplierNo, SupplierName, City):
item (ItemNo, ItemName):
supplied (SupplierNo, ItemNo, Quantity):
Create the relations and index structures. Then insert the above tuples into the tables. The types of
attribute Quantity is integer, while the types of all other attributes should be varchar. Print out all three
tables using “select * ~”.
[30-point] Write the following queries in SQL:
List all different items (ItemNo, ItemName) supplied by at least two suppliers (no repetition).
List all suppliers (SupplierNo, SupplierName) who supply item “Bolt”.
List all items (ItemNo, ItemName) supplied by either S2 or S4.
List all items (ItemNo, ItemName) supplied by both S2 and S4.
For each supplier that supplies at least one item, list SupplierNo and the total quantity supplied by
For each item supplied at least once, list ItemNo and the number of suppliers that supply the item.
Print the statements of your queries as well as the actual results of the queries.
Purchase answer to see full
Why Work with Us
Top Quality and Well-Researched Papers
We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.
Professional and Experienced Academic Writers
We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.
Free Unlimited Revisions
If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.
Prompt Delivery and 100% Money-Back-Guarantee
All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.
Original & Confidential
We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.
24/7 Customer Support
Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.
Try it now!
How it works?
Follow these simple steps to get your paper done
Place your order
Fill in the order form and provide all details of your assignment.
Proceed with the payment
Choose the payment system that suits you most.
Receive the final file
Once your paper is ready, we will email it to you.
No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.
No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.
Admission Essays & Business Writing Help
An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.
Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.
If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.