________ software provides the instructions that the computer needs to run
Fill in the blank(s) with correct word
System
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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.
To rearrange objects so disk space is used more efficiently, you should ________ the database
Fill in the blank(s) with correct word
When you use ASP and an Access database, you must input a custom ____________________ that Dreamweaver inserts into the page's server behaviors to set up the recordset.
Fill in the blank(s) with the appropriate word(s).
What are some of the essential characteristics of cloud computing as defined by the National Institute of Standards and Technology (NIST)?
What will be an ideal response?