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Practice 1

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March 30, 2009, at 04:53 PM by 128.213.6.8 -
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Here are some practice questions from the course book. Here are the solutions.

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Here are some practice questions from the course book. Here are the solutions.

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Here are some practice questions from the course book. I'll send solutions later.

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Here are some practice questions from the course book. Here are the solutions.

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  • Q2.4.1 e), f), h). Here are the solutions
  • Q2.4.5: The result of the natural join has only one attribute from each pair of equated attributes. On the other hand, the result of the theta-join has both columns of the attributes and their values are identical.
  • Q2.4.7. Here are the solutions
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  • Q2.4.1 e), f), h).
  • Q2.4.5
  • Q2.4.7
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  • Q2.4.1 e), f), h). Here are the solutions
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  • Q2.4.1 e), f), h). Here are the solutions
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  • Q2.4.7. Here are the solutions
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  • Q2.4.7. Here are the solutions
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  • Q2.4.1 e), f), h)
  • Q2.4.5
  • Q2.4.7
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  • Q2.4.1 e), f), h). Here are the solutions
  • Q2.4.5: The result of the natural join has only one attribute from each pair of equated attributes. On the other hand, the result of the theta-join has both columns of the attributes and their values are identical.
  • Q2.4.7. Here are the solutions
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  • Q2.4.1 e, f, h
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  • Q2.4.1 e), f), h)
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  • Q 3.4.2 b)
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  • Q3.4.2 b)
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  • Q6.1.2 c
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  • Q6.1.2 c)
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  • Q6.2.1 d, e
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  • Q6.2.1 d), e)
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  • Q6.4.6 d, j
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  • Q6.4.6 d), j)
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Here are some practice questions.

I'll send solutions later.

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Practice Questions

Here are some practice questions from the course book. I'll send solutions later.

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Here are some practice questions. I'll send solutions later.

to:

Here are some practice questions.

I'll send solutions later.

Changed lines 5-6 from:

Here are some practice questions

to:

Here are some practice questions. I'll send solutions later.

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  • Q6.4.6 d, j
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  • Q4.5.1
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  • Q4.5.1

Chapter 6 (SQL)

  • Q6.1.2 c
  • Q6.1.5
  • Q6.2.1 d, e
  • Q6.3.3
  • Q6.3.5 a)
  • Q6.4.8
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Chapter 2 (relational algebra)

  • Q2.4.1 e, f, h
  • Q2.4.5
  • Q2.4.7
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Chapter 4 (ER modeling)

  • Q4.1.3
  • Q4.3.1 b)
  • Q4.5.1
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Exam I Syllabus

Exam I will cover all the material covered until 13th Feb. If you have questions, bring them to class on 17th, and I'll try to answer them.

Here are some practice questions

Chapter 3 (functional dependencies & decompositions)

  • Q3.1.3 a) and c)
  • Q3.2.2 ii)
  • Q3.2.4 b)
  • Q3.2.10 b)
  • Q3.3.1 e)
  • Q3.4.1 b)
  • Q 3.4.2 b)
  • Q3.5.2
  • Q3.6.3 c)
  • Q3.7.1 b)
  • Q3.7.4 b)