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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 which are related to each other in significant ways: course, classroom, professor, and department. Sketch ER diagram with box for each of these four entities and arrows between boxes labeled with relationships they denote.
You have just received a new computer at work. it runs fast and works great. thinking about the future and the day something might break explain why it is important to record this information.
Determine the Cartesian product (A X B) of the given pair of sets. A => Set of first letter of names of countries = A = { R, S, T } B => Set of numbers denoting Postal codes = B = { 0001, 1001}.
Describe the characteristics of a Relational Database Management System (RDBMS).
Write down some of problems and issues related with internet databases? Consider security, performance, architecture issues.
Identify the business processes which would be evaluated and tracked with a DW/BI application and state your reasoning or justification for including these in the DW/BI.
Design the Update trigger on Part table which raises an error string if Count field of updated row has a higher value than value prior to Update.
Understand and interpret a set of business rules for a database and create an Enhanced Entity Relationship Diagram that models the requirements accurately
There are six major types of information systems which organisations use in their operations. Discuss how these information systems support managers in their decision making role Explain the datawarehouse and data mining concepts using appropria..
The DBA denormalized some of the data in the Premiere Products database to improve performance. Which field or fields cause the table to no longer be in third normal form? In which normal form is the denormalized table?
The data dictionary serves as an important data management tool by? assigning attributes to the data, maintaining data in updated form.
Assume that relation Employee has no tuples in it initially. You are to show the simplest example you can think of where using trigger T1 will produce a different final database state than using trigger T2.
Suppose that we replace the wait and signal operations of monitors with a single construct await(B), where B is a general Boolean expression. Write a monitor using this scheme to implement the readers--writers problem.
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