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Primary Task Response: Within the Discussion Board area, write 400-600 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discussions with your classmates. Be substantive and clear, and use examples to reinforce your ideas.
Enterprises are accumulating substantial amounts of data that are necessary for their business operations. As the quantities of data increase and the systems and processes that are used to manage these data become more complex, enterprises need better management of the content. The term enterprise content management (ECM) is used to describe this management process. For this discussion, research the library and Internet for information about ECM, and respond to the following questions.
Explain the concept of physical data independence and its importance in database systems, List four significant differences between a file-processing system and a DBMS.
Did the corresponding lines for invoices 1001 and 1008 in table LINE get deleted automatically? Can you explain why?
Write down the advantages and disadvantages of working with multiple tables? Write an example of situation where multiple tables would be suitable in the application.
What is lock granularity? Explain the use of BEGIN, COMMIT, and ROLLBACK TRANSACTION statements. Explain the meaning of expression ACID transaction.
What is the importance to have a button that takes you back to the main page on each web page? How does dead end or orphan pages affect the continuity of a website?
You are creating a database of measured meteorological data for use in weather and climate research. Explain a structure type measured_data_t with components site_id_num.
Its a lead a project that will implement a new learning management system for your university. You have two key tasks: Task 1: Investigate learning management software packages that are available through application service providers.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Consider following opinion shared by some people: database management systems and data-warehousing techniques are the greatest threat to individual privacy in modern times. What is your opinion?
List the courses (D-code and C-no), along with the names of the students who are currently taking them. List all the courses (D-code and C-no) that John (i.e., S-Name=''John'') got 'A' grade.
What is the key for R? Decompose R into 2NF, then 3NF relations and what you know about the relation to show that this MD cannot violate 4NF
Explain the role of a database administrator,the tasks performed by this role and why this role is important in Database Management.
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