The _________ provides a set of operations that take one or more relations as input and return a relation as an output.
Schematic representation
Relational algebra
Scheme diagram
Relation flow
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A ________ in a table represents a relationship among a set of values.
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2
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The tuples of the relations can be of ________ order.
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3
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This query can be replaced by which of the following ?
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4
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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.
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5
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The term attribute refers to a ___________ of a table.
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6
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Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary)
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7
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The result which the operation contains all pairs of tuples from the two relations, regardless of whether their attribute values match.
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8
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Using which language can a user request information from a database?
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9
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A domain is atomic if elements of the domain are considered to be ____________ units.
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10
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This query does which of the following operation?
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