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Oracle has many features for managing and tracking users. We have discussed user accounts with username, password, profiles, roles, and privileges. There are also auditing commands that enable the system to monitor and record activities of one user or all users. Yet, the create user statement has no way to associate a person with an Oracle user name. How do you recommend that this association be created? Be specific and explain the reasons for your recommendation.
Account Termination Policy. Suppose an employee leaves a company because he or she resigns, retires, takes a leave of absence, is laid off or fired. The company needs to have a policy and process for dealing with that employee's database access. What is your recommendation for this policy and process? Does the reason for leaving the company affect the recommendation? Why or why not? Be specific and explain your reasoning.
Map the EER schema into a set of relations. For the VEHICLE to CAR/ TRUCK/ SUV generalization, consider the four options presented
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..
You have a company, specializing in managing technology solutions. you have ben just hired by big firm to execute a well-planned strategy.
Point out the changes you require to make to Premiere Products database to support following situation: A customer is not necessarily represented by a single sales rep but can be represented by several reps.
Create the database using three tables: one for student information, one for advisor information, and one for department information.
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.
Over 70% of web applications use database to store persistent data. Write some of the problems and issues associated with internet databases?
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
Illustrate relational algebra expressions for names of all salespeople, names of all salespeople having ORDER row and names of salespeople not having ORDER row.
The chief financial officer (CFO) of NCWR keeps a huge number of reports, spreadsheets, and other critical financial information on his computer, which runs Windows 7
Create a data warehouse for electronics store chain. The chain has 20 stores in 5 cities. Each store has different sections including computers, DVDs, TVs, audio, home appliances etc.
What is the maximum rate at which data can be read from disk, assuming that we can only read data from one surface at a time? What is the average rotational latency?
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