The tuples of the relations can be of ________ order.
Any
Same
Sorted
Constant
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Which keyword must be used here to rename the field name?
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2
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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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3
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The _______operation performs a set union of two “similarly structured” tables
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4
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Using which language can a user request information from a database?
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5
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The most commonly used operation in relational algebra for projecting a set of tuple from a relation is
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6
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This query does which of the following operation?
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7
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A ________ is a pictorial depiction of the schema of a database that shows the relations in the database, their attributes, and primary keys and foreign keys.
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8
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In SQL the spaces at the end of the string are removed by _______ function.
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9
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’_____’ matches any string of ______ three characters. ’_____%’ matches any string of at ______ three characters.
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10
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A domain is atomic if elements of the domain are considered to be ____________ units.
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