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True or False
1. Indexes are a primary way of tuning performance.
2. Most RDBMSs optimize for nested queries better than they do JOINs.
3. Mathematically, a relation is a set of n tuples (x1, x2,... xn) where each element xi is drawn from a set Xi (and no tuple is repeated).
4. C.J. Date recommends an analytical approach to database design (rather than a synthetic one) when you are designing a brand new database from scratch
You prepared and distributed a system requirements document, and you anticipate some intense questioning at the meeting. When planning your presentation, what are some techniques you will use?
If some functions do not fit well into the current theoretical framework, can you propose a way to extend the framework to explain these functions?
One interesting application of computers is drawing of graphs and bar charts (sometimes called histograms). Write down script which reads five numbers between 1 and 30.
How does the model fit into the need of a selected organization? How can validity and formality be applied to the model?
Give an algorithm that returns true if a string contains properly nested and balanced parentheses, and false if otherwise. For full credit, identify the position of the first offending parenthesis if the string is not properly nested and balanced.
You are an expert witness for the first time. Because of your lack of experience, you talked with a complete stranger about details
The Fortune 500 firms are very large and many of them have significant product diversification. Do you believe these large firms are overdiversified? Do they experience lower performance than they should? Explain your opinion and rationale and ..
What should someone consider when defining their strategies for their specific cloud configuration?
What is the main lesson managers can learn from the study of monopoly markets?
What if there is no HCL available? Where might one find any supporting data before beginning a particular installation?
Select a topic of personal interest and post the link (and a screenshot, if possible) to a supporting RSS subscription site. Discuss the pros and cons of subscribing to an RSS feed.
You are the CEO of a company those activity releases pollutants in the river and have been subpoenaed to testify before a consumer affairs committee
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