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How to create a biological database based on viruses. How to decide which attribute should be there in the table and schema? How to identify the primary keys, foreign keys, domain, E-R diagram and 20 Queries on the same database.
Provide expression in relational algebra for each of the following queries: Give all the managers in database a 10 percent salary raise. Give all the other employees a 5 percent salary raise.
What advantage is there in storing metadata in tables? Is Microsoft Access a DBMS? Why or why not? List the several consequences of a poorly designed database.
Show the REA diagram using Microsoft Word
Populate your database with at least 3 rows of data and import your IDEF1X diagram into Oracle and create the appropriate tables and relationships.
Find the maximum salary of all employees who are not managers. Give all the managers in the database a 10 percent salary raise. Give all the other employees a 5 percent salary raise.
Customers Dunne an Olowski are included in the CUSTOMER table also in CUSTOMER_2 table. Explain How many records are returned when using the MINUS operator?
Describe the entity-relationship model. How are entities, relationships, and attributes represented in this model? What is a composite entity? Describe the approach to diagrams that uses a crow's foot.
Determine how you will collect the data elements needed for this measure (i.e. how will you collect the data elements needed to calculate the measure). Describe what those data elements are, and how they will be collected.
Draw an ER diagram for database scenario. Design a set of 3NF tables for your database scenario.
Draw an Entity Relationship diagram for the system and Identify the table design for the database displaying all the fields/attributes. Ensure that all tables are in 3NF. You also need to identify the primary keys and foreign keys, where applicable..
Sketch an E-R diagram which reflects the above reuirements. Write a set of relational schemas and identify primary and foreign keys. Try not to include redundant schemas.
Create a 2-3 page (350 words per page) examining the use of databases in organization. Explain what database applications are utilized (Microsoft Access, DB2, Oracle, etc.).
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