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What is a column expression?
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COUNT(*) calculates
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Indicate components of the cross product join style in a SELECT statement. This question allows multiple answers.
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For complex problems involving joins and grouping, you can decompose a SELECT statement by
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A condition involving an aggregate function must be placed in the HAVING clause.
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Grouping in a SELECT statement only occurs one time.
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Indicate components of the join operator style in a SELECT statement.
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Name qualification is required if more than one table in a SELECT statement contains the same column name referenced in the statement.
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A SELECT statement with an aggregate function in the result and no GROUP BY clause (no grouping columns) generates
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A condition not involving an aggregate function can be placed in the WHERE or HAVING clauses.
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What is the relationship between the columns appearing in a SELECT clause and columns in a GROUP BY clause?
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SQL contains statements for (multiple answers possible)
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What happens to unmatched rows in a join operation?
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