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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In SQL the spaces at the end of the string are removed by _______ function.
Solution |
2
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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 |
3
Discuss
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The most commonly used operation in relational algebra for projecting a set of tuple from a relation is
Solution |
4
Discuss
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The ________ clause is used to list the attributes desired in the result of a query.
Solution |
5
Discuss
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Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary)
Solution |
6
Discuss
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Using which language can a user request information from a database?
Solution |
7
Discuss
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The term attribute refers to a ___________ of a table.
Solution |
8
Discuss
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The tuples of the relations can be of ________ order.
Solution |
9
Discuss
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In the SQL given above there is an error . Identify the error.
Solution |
10
Discuss
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This query can be replaced by which of the following ?
Solution |
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