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1. Identify and discuss the serious data redundancy problems exhibited by the file structure shown in Figure. (The file is meant to be used as a teacher class assignment schedule. One of the many problems with data redundancy is the likely occurrence of data inconsistencies-two different initials have been entered for the teacher named Maria Cordon.)
2. Given the file structure shown in Figure, what problem(s) might you encounter if building KOM were deleted?
The data dictionary serves as an important data management tool by? assigning attributes to the data, maintaining data in updated form.
Views are integral part of virtual private databases, yet views are utilized for many other reasons. Find out many other uses for views.
Write the functional dependencies in the table which concerns invoicing (an application Premiere Products is considering adding to its database), subject to the specified conditions.
You are interested in examining some hard-to-obtain data from two separate databases. Each database comprises numerical values - so there are 2n values total
Consider a student club or organization in which you are a member. What are the data entities of this enterprise? List and define each entity.
Recognize level within a database system (user, programmer of application software, and designer of the DBMS software) at which each of the following concerns or activities occur.
Provide what reports may be produced as a result of your database design.Based on the information you have researched, create a 2-3 page design document that includes a description of the database you would like to create as well as sample tables ..
Explain the information-gathering techniques and design methods you would suggest to use for project. Recognize the key factors that help ensure the information required for the project.
Create a data warehouse for electronics store chain. Chain has 20 stores in 5 cities. Each store has different sections comprising computers, DVDs, TVs, audio, home appliances etc.
Artificially small example of B+ tree is shown here (pdf). (Note only part of tree is shown in detail.) What nodes of example B+ tree are visited to find posting list for "dune"?
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.
Why do you believe that views by themselves are insufficient for protecting access by unauthorized users?
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