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Data Storage and Compression
Imagine that you are serving in the role of director of data center operations for your company, which is currently using redundant sites as backup and manually managing replication and failovers. The business plan for your organization has changed, and management has decided to grow the business by 20% over the next year. The chief information officer (CIO) has tasked you with meeting the expected increase in demand for data storage while not increasing your department's budget. You believe that you can meet the challenge by adopting a new concept called data center virtualization. Write a report of 4-5pages (APA formatted) introducing your boss to the following:
· The concept of data center virtualization
· The benefits of storage virtualization
· The risks associated with this concept.
How does Oracle process this query? That is, what does Explain Plan tell you about how the query is processed - how would you recognize that the results were not correct?
Imagine an online registration application. Use your registration form as starting point for your analysis. Identify the entities that a potential database will need, along with their attributes.
Normalisation of relations which identifies: Dependency diagram for each relation, The level of Normalisation achieved for each relation;, The reasons for any relation that is maintained NOT in 3NF.
State the defnition of a lossless-join decomposition with respect to this example. Answer this question concisely by writing a relational algebra equation involving R, R1, and R2.
Create an update query to select all records in the tblOverPriced, decrease the Price field values by 10%, run and close the query.
Illustrate relational algebra expressions for names of all salespeople, names of all salespeople having ORDER row and names of salespeople not having ORDER row.
you work for centervale apparel a large clothing manufacturing firm. centervale apparel has budgeted 9.7 million for
use the contents of figure 1 to work problems 1-3.1.write the business rules that govern the relationship between agent
Does the relational model, as seen by an SQL query writer, provide physical and logical data independence? Explain.
Need a system that networks its 3 campuses in the US and one campus in Singapore. Transaction data for all campuses should be available to all locations. In addition, students should be able to use the Internet to view classes, enroll, register, and ..
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.
Why do you believe that views by themselves are insufficient for protecting access by unauthorized users?
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