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ER Diagram of cardinality and modality bank management system and discription of bank management system
Assume you are making a database to help university keep track of its course offerings. You might have following entities in database, as they are distinct items in real life.
Did the corresponding lines for invoices 1001 and 1008 in table LINE get deleted automatically? Can you explain why?
Describe how to create a query in Access Query Wizard equilvant to the query: SELECT first, last, department, hours FROM payroll WHERE hours>.
List the different entities or objects, logical processes, data flows, and data stores that are involved, starting from the time you submitted your time sheet.
Explain each of three database models, hierarchical, relational, and object-oriented, and provide specific referenced example of each of these model types implemented in a functioning database
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.
Use SQL to create the following database; to including referential integrity. You may NOT use the GUI for this part of the exercise. COURSE ( CourseNu, CourseName, CreditHrs).
What are triggers used for, and why are they important in database systems? Provide an example of a situation where a trigger would be appropriate.
Explain the differences between the storing data in Access and Excel. Why you would use a spreadsheet over the database?
What is the business implications that can be drawn from the process of building and comparing these models, and has this practice helped resolve the business issue? Why or why not?
Hhow can you change column name or what is a different way to write statement in SQL so it displays the amount column as money.
Explain the content of this document in natural language;Design the graph representation of document;
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