Use the Create condition with operator check box to specify whether Discoverer optional Enter an instruction or question into the What prompt do you want to

Using parameters 11-11 Click the Filter the list of values based on the selected conditions option to activate a list of conditions that can be used to filter the parameter values displayed to the user. Note: You might use this setting if you have very long lists of parameter values, and you want to improve performance by reducing the number of values that are displayed to the user. Select a check box for each condition you want to use to filter the list of parameter values displayed to the user only available if you clicked the Filter the list of values based on the selected conditions option. For more information, see About filtering lists of parameter values based on selected conditions cascading parameters . 15. Click OK to save the details and display the Edit Worksheet dialog . If you created a parameter to filter the worksheet, the check box next to the parameter is selected that is, parameter is active.

16. Click OK to close the Edit Worksheet dialog and return to the worksheet.

If the new parameter is active, Discoverer displays the Edit Parameter Values dialog , which enables you to specify parameter values for active parameters. The worksheet is updated according to parameter values entered for more information, see How to set parameters . Notes ■ You can also create a parameter in the following ways: – Select the New Parameter option on the Standard toolbar to display the New Parameter dialog . For more information about the Standard toolbar, see About the Standard toolbar . How to delete parameters You delete a parameter when you no longer want to use it, and want to remove it permanently from the worksheet. Note : If you only want to disable the parameter temporarily, deactivate the parameter for more information, see How to deactivate parameters . To delete a parameter: 1. Display the worksheet that contains the parameter you want to remove. 2. Choose Tools | Parameters to display the Edit Worksheet dialog . 11-12 Oracle Fusion Middleware Users Guide for Oracle Business Intelligence Discoverer Plus

3. Select the parameter you want to remove from the Available Parameters list.

4. Click Delete to remove the parameter from the worksheet, and click Yes at the confirmation dialog. 5. Click OK to close the Edit Worksheet dialog and return to the worksheet. When you open this workbook again, or refresh the worksheet, Discoverer does not prompt you to enter a value for this parameter. Notes ■ If the parameter that you delete is included in conditions or calculations, those conditions and calculations are also deleted. Examples of parameters This section contains examples of using parameters in Discoverer. Example 1: Using a parameter to filter a worksheet In this example you want worksheet users to be able to select which region’s data they want to analyze. In the figure below, the value Central is entered in the Edit Parameter Values dialog. This displays only data for the Central region on the worksheet.