Pipelines specify the sequence of transformations to apply to tabular data when a chain executes a Run pipeline command. A pipeline can include different types of transformations, based on how you want to impact the data.
From a pipeline, you can add and manage its transformations as a vertical list or horizontal flowchart:
- For a vertical list, click List .
- For a horizontal flow, click Visual .
Tip: To preview the transformations' impact, pin a sample file indicative of the columns and data from the Files of the pipeline.
Requirements
Data Prep is controlled entirely at the org level and does not recognize individual workspaces or their permissions.
This means:
- Data Prep is shared among all authorized users in your org.
- Any user with access to Chain Builder also has access to Data Prep.
- All users who can create or edit chains will have the ability to manage pipelines in Data Prep.
- A single Data Prep pipeline can be used across multiple chains and workspaces within an organization.
Add transformations to a pipeline
To add a transformation to a pipeline:
- From Wdata Chains, click Data Prep.
- From Pipelines , open the pipeline.
- Add the transformation:
- For the first transformation, click Create transformation.
- For an additional transformation in a horizontal flow, click Add transformation before or after the preceding or following transformation.
- For an additional transformation in a vertical list, click Add transformation after for the preceding transformation.
- For the first transformation, click Create transformation.
-
Select the transformation to add, click Next, and set up its values and rules.
Tip: To enable flexibility, some of the transformation's values may support variables create runtime variables.
. To prompt for these values when the pipeline runs, you can - Click Save.
Copy a transformation
To add another instance of a transformation to a pipeline, such as to apply multiple mapping groups:
- In the pipeline, select the existing transformation, and click Copy .
- Update the settings of the duplicate as necessary.
- Click Save.
Reorder transformations
To reposition a transformation, select it in the pipeline, and then click Move forward or Move back to shift it forward or backward one transformation, respectively.
Note: When you reposition a transformation, adjust the order of any transformations that depend on its result as necessary.
Delete a transformation
To remove a transformation from a pipeline:
- In the pipeline, select the transformation, and click Delete .
- In Confirm, enter
delete
. - Click Delete.