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Consider the following relational schema for a library:member(memb_no,name,dob)books(isbn,title,authors,publisher)borrowed(memb_no,isbn,date)Write eh following queries in relational algebra.a. Find the names of members who have borrowed any book published by "McGraw-Hill".b. Find the names of members who have borrowed all book published by "McGraw-Hill".c. Find the name and membership number of members who have borrowed more than five books published by "McGraw-Hill".d. Find the name and membership number of members who have borrowed more than five different books of that publisher.e. Find the average number of books borrowed per member. Take into account that if a member does not borrow any books, then that member does not appear in the borrowed relation at all.
Under what situation can human beings be held morally responsible for what they do? If our actions are determined by other influences, does that get us off the hook, or should we accept responsibility even in cases where we could not have done oth..
In his lecture "The Nature of the Judicial Process," Justice Benjamin N. Cardozo said, "(The judge) fills the open spaces in the law.
A hydrocarbon feed consisting of a mixture of 20 wt% propane, 30 wt% isobutene, 20 wt% isopentane, and 30 wt% n-pentane is fractionated at a rate of 1000 kmol/hr into a distillate that contains all the propane and 78% of the isopentane in the feed. T..
Obviously the employ of different national currencies creates a barrier to further growth in international business activity, but what are the pros among companies of replacing national currencies with regional currencies?
Several researchers believe that an infant in utero can hear sounds which it is influenced by parents playing music or reading aloud.
There are many factors that impact an individual's ability to recognize objectives. These factors include orientation. There have been some studies that have demonstrated that orientation has relatively little effect on object recognition.
It's obvious that cardiac concerns arise when hypertension is a factor, and this is a direct correlation to heart failure?
What are the perspectives and responsibilities of the financial management staff when dealing with health care issues?
The movement toward secession in the winter of 1860-1861 was most rapid in...
Critically discuss why a needs assessment was performed at the beginning phases of program development. Analyze the role of the needs assessment in your evaluation plan.
Critically discuss the most important concept about critical thinking for a person? What tools/insights does critical thinking give someone to make positive change in their life?
How are Japanese companies able to compete with American companies despite their different approaches to business? Do the Japanese know more about us than we do about them?
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