Computer Science Homework Solutions

Database concept

1. What the Business Rules are? How can you enforce Business Rules in DBMS? 2. Is that acceptable for your company's critical data stored in a flat file systems or Excel? Why and why not? 3. What is 1 tier, 2 tiers and 3 tiers and N tiers in database architecture? Can you offer an example on each tier?

Create an ERD

Create a detailed and normalized ERD using the attached log file. Using Microsoft Access, create the preliminary (no keys and no relationships) database tables for log attached log file. An Access MDB should contain the tables. The ERD may be part of the Access MDB.

DBMS

Explain the concepts of “transaction”(unit of works)? Can you give me an example of a transaction in DBMS?

Complete New Database

To be used with SQL Server 2005 Express Create a database and name it ITD_GPA. Populate your database with appropriate test data. • Include all of the scripts in a single file called ITD_GPA.SQL • Create at least three related tables in the database. • Create at least two stored procedures and a script to use each of t ...continues

Choosing/Designing a Database

You have been tasked to design a database system to store all of the relevant information for a student alumni association for a large university. Which database product would you choose and what design considerations would you examine to arrive at that decision?

Domain/Key

Need help transforming 2 relations into Domain/Key Normal Form. See attached file for full problem description.

Creating ERD

Perform an ERD design for the system attached! (jpg.file is attached)

ERD Design

For this customer sales order systems, perform an ERD design for this(fully-attribued, key_based ERD up to 3rd NF)--from the attached file.

ERD

Please help me create the ERD design from the attached file. Thank you so much!

ERD

Please help me performing a quick ERD diagram design from this employee tracking model.

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