Student(ID, name, dept name, tot_cred)
In this query which attributes form the primary key?
Name
Dept
Tot_cred
ID
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1
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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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2
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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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3
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’_____’ matches any string of ______ three characters. ’_____%’ matches any string of at ______ three characters.
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4
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A relational database consists of a collection of
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5
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_____ operator is used for appending two strings.
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6
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In SQL the spaces at the end of the string are removed by _______ function.
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7
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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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8
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The term _______ is used to refer to a row.
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9
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The ________ clause is used to list the attributes desired in the result of a query.
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10
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In the SQL given above there is an error . Identify the error.
Solution |
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