Which is NOT one of the most common types of SQL CHECK constraints?
System date
Range checks
Lists of values
Comparing one column value to another within the same table
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The statement in SQL which allows changing the definition of a table is
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2
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Which of the following is an SQL trigger supported by Oracle?
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3
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A reason for using an SQL view to hide columns is
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4
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Which of the following is a valid SQL type?
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5
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Which of the following is correct
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6
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Which one of the following is not true for a view
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7
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Which of the following is an advantage of view?
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8
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The SQL ALTER statement can be used to
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9
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To delete a particular column in a relation the command used is
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10
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Count function in SQL returns the number of
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