Question

Which of the statements below best describes the result set returned by this SELECT statement? SELECT VendorState, COUNT(*) AS Column2 FROM Vendors GROUP BY VendorState HAVING COUNT(*) > 1;

a.The names of the vendors in each state
b.The duplicate vendors from each state
c.The number of vendors in each state
d.The number of vendors in each state having more than one vendor

Answer 1

Answer:

Option d is the correct answer for the above question.

Explanation:

• The above SQL statement firstly executes the from clause, because it searches the table from the database.
• Then it searches the duplicate vendor name with the help of having a clause. It is because having clause is used in the place where, when the statement has aggregation functions.
• Then select statement is executed which selects the vendor state by the count of the vendor state and displays it.
• So the duplicate vendor state number is presented on the screen. This output is stated from the option d. Hence option d is the correct answer while the other is not because the other option does not tell about the correct output, which is executed by the above query.