Suppose that we pick the following four tuples from a legal relation S (S has 100...
Suppose that we pick the following four tuples from a legal relation S (S has 100 tuples in total). S has the following schema:
(A: integer, B: integer, C: integer)
The four tuples are: (1,2,3), (4,2,3), (5,3,3) and (5,3,4).
Which of the following functional (→)can you infer does not hold over relation S?
a. A → B
b. BC → A
c. A → C
d. AC → B
Homework Answers
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Suppose that we pick the following four tuples from a legal
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Language: SQL - Normalization and Functional
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1)
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1)
2) Give formal descriptions (5-tuples) for the DFAs shown in
figure below:
3) Give the state diagrams of DFAs recognizing the following
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a) LÆ
b) L?
c) {e, 1001}
d) {e, 101, 1001}
e) {w : w has prefix 10}
f) {w : w does not contain the substring
011}
4) Give the state diagrams of DFAs recognizing the following
languages over ? = {0, 1}:
a) {w: |w| ? 5}
b) {w...
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