When you define a delta transformation, you set the action attribute to delta and specify the parameters.
This table describes the input parameters.
| Parameter | Required? | Value |
|---|---|---|
| dimension | Yes | Dimension column in the dataset used to sort records when calculating the delta values. |
| epoch | Yes | Epoch date column in the dataset used to sort records within each dimension when calculating delta values. |
| inputMeasure | Yes | Measure column on which you want to calculate the delta. |
| outputMeasure | Yes | Name of the output column that contains the delta value. |
| source | Yes | Node in the dataflow definition file that contains the dataset to which you want to add the delta column. |