Preview the rows read by the input step

Follow these steps to preview the rows read by the input step.

1. Right-click the Read Sales Data step and select Preview.

   

   Transformation Menu showing how to access Preview
2. Specify the number of rows to preview. Optionally, you can configure breakpoints which pause execution based on a defined condition, such as a field having a specific value or exceeding a threshold.

3. Click the Quick Launch button. Preview the data and notice that several of the input rows are missing values for the POSTALCODE field.

   

   Preview showing missing postalcode fields
4. Click Stop on the preview window to end the preview.