Table of Contents


  1. Preface
  2. Using the Designer
  3. Working with Sources
  4. Working with Flat Files
  5. Working with Targets
  6. Mappings
  7. Mapplets
  8. Mapping Parameters and Variables
  9. Working with User-Defined Functions
  10. Using the Debugger
  11. Viewing Data Lineage
  12. Comparing Objects
  13. Managing Business Components
  14. Creating Cubes and Dimensions
  15. Using the Mapping Wizards
  17. Datatype Reference
  18. Configure the Web Browser

Viewing Link Paths to a Port

Viewing Link Paths to a Port

When editing a mapping, you may want to view the forward and backward link paths to a particular port. Link paths allow you to see the flow of data from a column in a source, through ports in transformations, to a port in the target.
To view link paths, highlight a port and right-click it. Select the Select Link Path option. You can choose to view either the forward path, backward path, or both. The Designer displays all the connectors in the link path you select.
When displaying both link paths, the Designer traces the flow of data from one column in the source, in and out of each transformation, and into a single port in the target. For unconnected transformations, the Designer does not display a link path. For connected Lookup transformations, the Designer shows each output port dependent upon the input ports involved in the lookup condition. For Custom transformations, the Designer shows that an output port depends on all input ports by default. However, if you define port relationships in a Custom transformation, the Designer shows the dependent ports you define.
You can configure the color the Designer uses to display connectors in a link path. When configuring the format options, choose the Link Selection option.

Updated June 25, 2018