The_____ operation allows the combining of two relations by merging pairs of tuples, one from each relation, into a single tuple.
Select
Join
Union
Intersection
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1
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A relational database consists of a collection of
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2
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In the SQL given above there is an error . Identify the error.
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3
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The tuples of the relations can be of ________ order.
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4
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The ________ clause is used to list the attributes desired in the result of a query.
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5
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The _________ provides a set of operations that take one or more relations as input and return a relation as an output.
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6
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Using which language can a user request information from a database?
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7
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Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary)
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8
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Course(course_id,sec_id,semester) Here the course_id,sec_id and semester are __________ and course is a _________
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9
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_____ operator is used for appending two strings.
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10
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The term attribute refers to a ___________ of a table.
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