A(n)____________________ column is a column that does not exist in the database but can be computed using data in the existing columns.
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Q51: The _ operator uses one or more
Q52: The _ clause is used to restrict
Q53: When the _ operator connects simple conditions,all
Q54: The _ operator uses one or more
Q55: In SQL for Oracle and for
Q57: The _ function determines the number of
Q58: A(n)_ is simply a question represented in
Q59: When you need to sort data on
Q60: You can assign a name to a
Q61: You can use the _ clause to
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