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Consider the following relation:
There is a clustered index on eid and an unclustered index on age.
1. Which factors would you consider in deciding whether to make an index on a relation a clustered index? Would you always create at least one clustered index on every relation?
2. How would you use the indexes to enforce the constraint that eid is a key?
3. Give an example of an update that is definitely speeded up because of the available indexes. (English description is sufficient.)
4. Give an example of an update that is definitely slowed down because of the indexes. (English description is sufficient.)
5. Can you give an example of an update that is neither speeded up nor slowed down by the indexes?
Can a language have no reserved words? That is, suppose every reserved word (such as if and for) were merely predefined identifier. Can such a language exist? Explain.
Please do not the information we have in previous discussion questions about to give a presentation. The focus of this is the technical side of doing presentations.
As the use of computers and the internet becomes more prevalent, ethical issues related to computer usage will continue to make a larger impact on people's lives and the way that society functions. Computer ethics involves the moral principles an..
Habibi's has a small network of 20 client workstations and a Windows Server 2008. Seven of those workstations are inside the restaurant and are used by the table servers to place customer orders. Three of the workstations are used by the owner and th..
The cone has a weight W and center of gravity at G. If a horizontal force P is gradually applied to the string attached to its vertex, determine the maximum coefficient of static friction for slipping to occur.
A different user with a computer using phoenix BIOS hears a sequence of beeps with pauses in between. The sequence is beep- pause - beep beep beep- pause- beep beep beep beep- pause- beep beep beep. What error is indicated by this beep sequence?
What is intermodulation distortion? What sorts of signals are susceptible to this form of distortion?In addition, identify two situations in which error-free transmission is crucial to business processes. Instructions:•Your research essay should be ..
Suppose we are given a system with state matrices F, G, H (J = 0 in this case). Find the transformation T so that, under Eqs. (7.24) and (7.25), the new state description matrices will be in observer canonical form.
Compare the relative differences for these two system calls with those of Table 28-3. The shell built-in command time can be used to measure the execution time of a program.
How do you create an applet with a button labeled "Who's the greatest?" When the user clicks the button, display your name in large font.
Write the code to retrieve and read the data using this approach.
Find the range of addresses for each organization and the range of unallocated addresses.
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