Computers and Technology, 10.04.2020 18:40, 2643050
Congratulations! You have been hired to plan databases for the European Union. Your first job assignment is to help the various countries maintain information about their inhabitants. Your model should capture the following information:
In each country, there are provinces, which contain towns. There cannot be two provinces with the same name in a single country. Similarly, there cannot be two towns with the same name in a single province.
People live in towns. Men and women work in a town. Children learn in a school in a town.
A person can be a man, a woman, or a child, and has a firstname, last-name, id, and birthday. Children are considered to be any people under the age of 18.
A man can be married to a woman (polygamy is not allowed, i. e., one man can be married only to one woman). Although the Pope strongly disapproves, divorce, and subsequent remarriage, is possible.
For each marriage, store the date of the marriage and information about who are the children of the married couple. You should assume that the parents of a child were married at the time of his birth.
Draw an entity-relationship diagram to model the information described above. Underline the key attributes of each entity in the diagram. Make any necessary and logical assumptions. State any such assumptions clearly. If there are any constraints in the problem that could not be expressed in the diagram, state these clearly.
Answers: 1
Computers and Technology, 22.06.2019 11:50, nicoleskertich
You have written, as part of a school assignment, a research paper on the solar system. you want to share this paper on your school website. on which type of server will you upload it?
Answers: 1
Computers and Technology, 22.06.2019 14:30, qxchung7310
The βrule of 72β is used to approximate the time required for prices to double due to inflation. if the inflation rate is r%, then the rule of 72 estimates that prices will double in 72/r years. for instance, at an inflation rate of 6%, prices double in about 72/6 or 12 years. write a program to test the accuracy of this rule. for each interest rate from 1% to 20%, the program should display the rounded value of 72/r and the actual number of years required for prices to double at an r% inflation rate. (assume prices increase at the end of each year.)
Answers: 1
Computers and Technology, 22.06.2019 18:10, o10922025
Assume that to_the_power_of is a function that expects two int parameters and returns the value of the first parameter raised to the power of the second parameter. write a statement that calls to_the_power_of to compute the value of cube_side raised to the power of 3 and that associates this value with cube_volume.
Answers: 1
Congratulations! You have been hired to plan databases for the European Union. Your first job assign...
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