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What must a user guarantee with respect to a transaction and database consistency? What should a DBMS guarantee with respect to concurrent execution of several transactions and database consistency?
Explain how you would formulate an SQL injection attack against an e-Commerce server such as Amazon
Draw an ER diagram for your database scenario. Design a set of 3NF tables for your database scenario.
How can replication help the performance of a distributed database and in what situations can replication hurt the performance of a distributed database?
You have a company, specializing in managing technology solutions. you have ben just hired by big firm to execute a well-planned strategy.
Analyze the data in at least three different ways. Each form of Data Analysis should be provided on a separate, appropriately labeled worksheet. It is expected that each sheet will be professionally formatted and clearly documented with titles, co..
Calculated field query with table JOIN: Find the ticket numbers and the users submitted the tickets, for those tickets that take more than 5 days to resolve, define a new field TimeSpent, which is the time resolved minus the time ticket was submit..
A small business with 100 computer workstations is installing a new local area network. All of the users perform the usual operations of e-mail. State your reasoning. Draw a floor plan for each If possible, show both floor plans on one page.
Describe why relational databases are more efficient AND effective for data management in organizations. How does the task of data normalization help to achieve these goals?
He wishes you to group data by insurance company number, with subtotals by company and grand totals for each numeric field.
Write down your subquery MAX_CALC_SAL. Name columns in result JOB_TITLE and JOB_TOTAL, and sort result on JOB_TOTAL in descending order.
Define health care database systems. Describe how databases are used across the health care industry. Explain the different database architectures including the relational architecture.
assume that a student table in a university database has an index on studentid the primary key. and additional indexes
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