If the Traffic Viewer is attached to a DB tool and a "SELECT" statement is executed by the DB tool, the Response area will show a table that contains the results of the DB query. 

When a DB  tool executes multiple SQL statements and the response includes multiple result sets, you can use the combo box (above the table when there are multiple result sets) to determine which result set’s traffic is shown.

Here, the traffic viewer is showing the results for result set Result Set 2:

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