SELECT SUM(Sales) AS Sales, Customer FROM Sales GROUP BY Territory, Sales HAVING SUM(Sales) > 5000; What will the result of this query be? Pick ONE option: - The result set will be returned summed by Territory and then Customer - You will receive an error: Incorrect syntax near the keyword 'GROUP BY'. Remove the Sales from GROUP BY - You will receive an error: Column 'Customer' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause. Remove the Customer field from the SELECT statement. - The result set will be returned summed by Territory only
Answer (2)
The query provided will result in an error due to incorrect syntax use. Specifically, the presence of 'Sales' in the GROUP BY clause is incorrect as it should be a column that is either directly selected or an aggregate function is applied over it. Also, the inclusion of 'Customer' in the SELECT statement without being in the GROUP BY clause or used within an aggregate function leads to another error.
Let's analyze the SQL query step-by-step:
SELECT SUM(Sales) AS Sales, Customer FROM Sales : This part of the query attempts to select the sum of sales and also selects the customer column.
GROUP BY Territory, Sales : Here, you are trying to group by 'Territory' and 'Sales'. 'Sales' is an aggregate function used in the SELECT clause, so it should not be included in the GROUP BY clause. Instead, you should include every column that is not an aggregate function in the GROUP BY clause. Since 'Customer' is not part of the aggregate function, it should be included in the GROUP BY clause rather than 'Sales'.
HAVING SUM(Sales) > 5000 : This clause is correctly checking for total sales greater than 5000.
Therefore, the correct explanation and the multiple-choice option to be chosen is:
"You will receive an error: Column 'Customer' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause. Remove the Customer field from the SELECT statement."
The SQL query will result in an error because the 'Customer' column is not included in the GROUP BY clause or an aggregate function. Thus, the selected option is: "You will receive an error: Column 'Customer' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause. Remove the Customer field from the SELECT statement."
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