How to Populate a Parameter Default Value Using a Dynamic Query in VDM

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Article Goal

Learn how to set up a default value for a parameter in VDM using a dynamic query.

This is especially helpful when you want VDM to pre-fill a value based on a query result—allowing for more dynamic and efficient report generation.

Where Do You Populate the Default Value with A Dynamic Query?

You’ll need to open or create a view in VDM and navigate to the Parameters tab. From there, select the parameter you wish to update and apply the dynamic query.

Why Use a Dynamic Query for Default Values?

Setting a default value with a dynamic query means:

• Reports can auto-fill with the latest or most relevant data.

• You reduce manual user input.

• Views become more flexible and automated.

Example: Defaulting to the most recent current Employee IDs.

Steps To Populate the Default Value with A Dynamic Query

• Launch VDM.

• Open an existing view or create a new view.

• Navigate to the Parameters: Click the Parameters tab.

• Add or Modify a Parameter: Choose the parameter you want to configure or add a new one.

• Enable Dynamic: Set the Dynamic property to True under the Default Value section.

• Insert Your Query: Paste your dynamic SQL query into the Value field under Default Value.

If you already have a query prepared, you can copy and paste it here.

• Run the View: Test the view to ensure the default value is populating correctly based on your dynamic query.

Article Summary

This article explains how to populate a default parameter value in VDM using a SQL query. It walks users through setting the dynamic property, adding or modifying parameters, and inputting a live query to pre-fill parameter values automatically. Ideal for users looking to streamline report generation with automated, query-driven inputs. Includes step-by-step instructions and highlights the benefits of using dynamic defaults to enhance flexibility and usability in views.