SELECT name ____ instructor name, course id
FROM instructor, teaches
WHERE instructor.ID= teaches.ID;
Which keyword must be used here to rename the field name?
From
Rename
As
Join
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1
Discuss
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The_____ operation allows the combining of two relations by merging pairs of tuples, one from each relation, into a single tuple.
Solution |
2
Discuss
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Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary)
Solution |
3
Discuss
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Which one of the following has to be added into the blank to select the dept_name which has Computer Science as its ending string?
Solution |
4
Discuss
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Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.
Solution |
5
Discuss
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Student(ID, name, dept name, tot_cred)
Solution |
6
Discuss
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The _______operation performs a set union of two “similarly structured” tables
Solution |
7
Discuss
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By default, the order by clause lists items in ______ order.
Solution |
8
Discuss
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A relational database consists of a collection of
Solution |
9
Discuss
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The _______ operator takes the results of two queries and returns only rows that appear in both result sets.
Solution |
10
Discuss
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For each attribute of a relation, there is a set of permitted values, called the ________ of that attribute.
Solution |
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