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1 This homework contains 8 pages. Please scroll down to see all of the pages.

2 Homework Use pencil and paper, or a computer, to redraw the database. Add a one-to-one relationship that shows: the CS department head is Doe the MIS department is Doe. You may or may not need to create extra columns for primary keys extra columns for foreign keys transaction/linking tables Departments Name office CS CS 101 MIS MIS 202 Employees Employee Office Doe CS 111 Doe MIS Use pencil and paper, or a computer, to redraw the database. Add a one-to-many relationship that shows: the CS department contains Doe and Doe the MIS department contains Doe and ie Doe You may or may not need to create extra columns for primary keys extra columns for foreign keys transaction/linking tables Departments Name office CS CS 101 MIS MIS 202 Employees Employee Office Doe CS 111 Doe CS 222 ie Doe MIS 111 Doe MIS 222

3 3. Use pencil and paper, or a computer, to redraw the database. Add a many-to-many relationship that shows: Doe is taking DBMS and Microsoft Office Doe is taking DBMS and Computer Literacy Doe is taking Microsoft Office and Computer Literacy You may or may not need to create extra columns for primary keys extra columns for foreign keys transaction/linking tables Student Courses firstname lastname Doe Doe Doe CS 230 CS 201 CS 203 name DBMS Computer Literacy Microsoft Office 4. A mail order business uses a database to track sales. The database contains the following tables: CatalogItems contains item, itemname, itemdescription, itemprice, etc. Orders is a transaction table to track which customer purchased which items Customers contains customer, customername, customer Address, etc. Your author describes how to create a table matrix. Use your author s technique to create a table matrix for this database. You may use pencil and paper or you may use a computer. 5. Write detailed descriptions of the 5 deletion rules.

4 6. Suppose I have a one-to-many relationship between mom and child. Suppose the deletion rule is set to deny. Suppose I delete from the table. 7. Suppose I have a one-to-many relationship between mom and child. Suppose the deletion rule is set to restrict. Suppose I delete from the table. 8. Suppose I have a one-to-many relationship between mom and child. Suppose the deletion rule is set to restrict. What do I need to do to delete from the table?

5 9. Suppose I have a one-to-many relationship between mom and child. Suppose the deletion rule is set to cascade. Suppose I delete from the table. 10. Suppose I have a one-to-many relationship between mom and child. Suppose the deletion rule is set to nullify. Suppose I delete from the table. 11. Suppose I have a one-to-many relationship between mom and child. Suppose the deletion rule is set to set default. Suppose I delete from the table.

6 12. A mail order business uses a database to track sales. The database contains the following tables: CatalogItems contains item, itemname, itemdescription, itemprice, etc. Orders is a transaction table to track which customer purchased which items Customers contains customer, customername, customer Address, etc. With pencil and paper, or with a computer, create an Entity-Relationship diagram. Show: name of the table primary key fields foreign key fields lines to represent relationships the appropriate symbols to show one-to-one, one-to-many, and/or many-to-many the appropriate symbols to show mandatory and optional participation the appropriate symbols to show degree of participation the appropriate symbols to show deletion rules 13. A CatalogItem table contains the following fields: item itemcategory itemname itemdescription itemprice Use a pencil and paper, or a computer, to create an update query that decreases the itemprice of every item by 10%. Field: Table: Update to: Criteria: Or

7 14. A CatalogItem table contains the following fields: item itemname itemcategory itemdescription itemprice A Categories table contains the following fields: category description Use a pencil and paper, or a computer, to create an append query to copy all of the itemcategories from the CatalogItem table into the category field of the Categories table. Field: Table: Sort: Append to: Criteria: Or 15. A CatalogItem table contains the following fields: item itemname itemcategory itemdescription itemprice Use a pencil and paper, or a computer, to create a make table query to copy all of the itemcategories into a new table named Categories. Field: Table: Sort: Criteria: Or

8 16. A CatalogItem table contains the following fields: item itemname itemcategory itemdescription itemprice Use a pencil and paper, or a computer, to create delete query to delete all items that are in the computer category. Field: Table: Sort: Criteria: Or