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New England University maintains a data warehouse that stores information about students, courses, and instructors. Members of the university's Board of Trustees are very much interested in students' academic performance as well as instructors' teaching effectiveness. For example, they may like to know:
Note that each undergraduate student must declare his/her major and up to two minors by the end of the junior year. A graduate student may have a major (e.g., MBA) and a minor or concentration (e.g., IT). Some courses (e.g., undergraduate GB courses) may be "co-offered" by several departments. An instructor may be affiliated with more than one department.
1. Draw the two star schemas and specify all relevant attributes.
2. Identify conformed dimensions.
3. Identify any slowly changing dimensions and the attributes whose values may change from time to time.
4. Draw a lattice hierarchy for each dimension that has more than one level.
what is an isosceles triangle? ..
how can you memorise you times facts
Let's recall how do to do this with a rapid number example. 5/6 - 3/4 In this case we required a common denominator & reme
ball are arranged in rows to form an equilateral triangle .the firs row consists of one abll,the second of two balls,and so on.If 669 more balls are added,then all the balls canbe
a3-a2+a-1
Multistage sampling Multistage sampling is similar to stratified sampling except division is done on geographical/location basis, for illustration a country can be divided into
triangular with base AB = 48cm and height CH=16cm is inscribed a rectangle MNPQ in which MN: MQ = 9:5 Find MN and MQ
get the viscosity of particle to apply the stoke''s law
Taylor Series - Sequences and Series In the preceding section we started looking at writing down a power series presentation of a function. The difficulty with the approach
Solving Trig Equations with Calculators, Part II : Since this document is also being prepared for viewing on the web we split this section into two parts to keep the size of the
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