Write structured pseudocode to indicate that you will keep drying your hair while it is still wet.
What will be an ideal response?
while hair is wet
dry hair
endwhile
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Select the invalid date from the list below:
a. February 29, 2000 b. February 29, 1900 c. February 29, 1804 d. February 29, 1708 e. None of the above
Consider the following schema, where the keys are underlined:
The SSN attribute in Project is the Id of the employee working on the project and PID is the
Id of the project. There can be several employees per project, but the functional dependency
PID ! Name,Budget holds (so the relation is not normalized). Consider the query.
SELECT P.Budget, P.Name, E.Name
FROM Employee E, Project P
WHERE E.SSN = P.SSN AND
P.Budget > 99 AND
E.Name = 'John'
ORDER BY P.Budget
Assume the following statistical information:
10,000 tuples in Employee relation
20,000 tuples in Project relation
40 tuples/page in each relation
10-page bu er
1,000 di erent values for E.Name
The domain of Budget consists of integers in the range of 1 to 100
Indices:
? Employee relation:
On Name: Unclustered, hash
? Project relation:
On SSN: Unclustered, hash
On Budget: Clustered, 2-level B+ tree
Question: Find the best execution plan, draw it, and estimate its cost.
Each kernel is operated by the application software which, in turn, is directed by the kernel running on the host computer.
Answer the following statement true (T) or false (F)
Software project estimation techniques can be broadly classified under which of the following headings?A) automated processes B) decomposition techniquesC) empirical modelsD) regression models
What will be an ideal response?