Communities
A collaborative platform to connect and grow with like-minded Informaticans across the globe
Product Communities
Connect and collaborate with Informatica experts and champions
Discussions
Have a question? Start a Discussion and get immediate answers you are looking for
User Groups
Customer-organized groups that meet online and in-person. Join today to network, share ideas, and get tips on how to get the most out of Informatica
Get Started
Community Guidelines
Knowledge Center
Troubleshooting documents, product guides, how to videos, best practices, and more
Knowledge Base
One-stop self-service portal for solutions, FAQs, Whitepapers, How Tos, Videos, and more
Support TV
Video channel for step-by-step instructions to use our products, best practices, troubleshooting tips, and much more
Documentation
Information library of the latest product documents
Velocity (Best Practices)
Best practices and use cases from the Implementation team
Learn
Rich resources to help you leverage full capabilities of our products
Trainings
Role-based training programs for the best ROI
Certifications
Get certified on Informatica products. Free, Foundation, or Professional
Product Learning Paths
Free and unlimited modules based on your expertise level and journey
Resources
Library of content to help you leverage the best of Informatica products
Tech Tuesdays Webinars
Most popular webinars on product architecture, best practices, and more
Product Availability Matrix
Product Availability Matrix statements of Informatica products
SupportFlash
Monthly support newsletter
Support Documents
Informatica Support Guide and Statements, Quick Start Guides, and Cloud Product Description Schedule
Product Lifecycle
End of Life statements of Informatica products
Ideas
Events
Change Request Tracking
Marketplace
English
  • Common Content for Data Engineering 10.2.1
  • All Products

Table of Contents

Search

  1. Preface
  2. Mappings
  3. Mapplets
  4. Mapping Parameters
  5. Mapping Outputs
  6. Generate a Mapping from an SQL Query
  7. Dynamic Mappings
  8. How to Develop and Run a Dynamic Mapping
  9. Dynamic Mapping Use Cases
  10. Mapping Administration
  11. Export to PowerCenter
  12. Import From PowerCenter
  13. Performance Tuning
  14. Pushdown Optimization
  15. Partitioned Mappings
  16. Developer Tool Naming Conventions

Developer Mapping Guide

Developer Mapping Guide

Back Next

Design-time Links

Design-time Links

You can create different types of links when you design a dynamic mapping. You can create links between two ports, between a group and a dynamic port, between two dynamic ports, and from a generated port to a static port.
A design-time link (link) is a direct link that you create within a mapping. Transformations might change in such a way that you cannot create direct links when you design the mapping. If you cannot create links at design time, you can configure run-time links that determine the ports to link at run time.
The following image shows the links in a dynamic mapping:
The mapping contains a Read transformation, Sorter, and an Expression transformation. The All Ports group in the Read transformation is linked to a dynamic port "From_Read_EMPLOYEE" in the Sorter transformation. The ports ssn and zip5 are linked between the Read and Sorter transformations. The dynamic ports From_Read_EMPLOYEE are linked between the Sorter and Expression transformations. The generated port "name" under the dynamic port "From_Read_EMPLOYEE" in the Sorter transformation is linked to a port "name" in the Expression transformation. The ports ssn and zip5 are linked between the Sorter and Expression transformations.
  1. Link from a group to a dynamic port
  2. Link between two dynamic ports
  3. Link from a generated port to a static port
  4. Link between two ports
You can create the following types of links when you design a mapping:
Link a group to a dynamic port.
A link from a group to a dynamic port propagates data for one or more columns. A group can contain one or more ports and dynamic ports. Input rules for a dynamic port determine the generated ports that appear under the dynamic port. The default rule is to include all columns in the group as generated ports in the dynamic port of the downstream transformation.
For example, the previous image shows a link from the All Ports group in the Read transformation to a dynamic port "From_Read_EMPLOYEE" in the Sorter transformation. The input rule for the dynamic port "From_Read_EMPLOYEE" in the Sorter transformation includes string ports.
Link two dynamic ports.
A link between two dynamic ports propagates data for one or more columns. Input rules for a dynamic port determine the generated ports that appear under the dynamic port. The default rule is to include all columns from the upstream dynamic port as generated ports in the dynamic port of the downstream transformation.
For example, the previous image shows a link from the dynamic port "From_Read_EMPLOYEE" in the Sorter transformation to another dynamic port "From_Read_EMPLOYEE" in the Expression transformation. The input rule for the dynamic port in the Expression transformation includes string ports and excludes the "name" port.
Link a generated port to a static port.
A link from a generated port to a port propagates data for a single column.
For example, the previous image shows a link from the generated port "name" under the dynamic port "From_Read_EMPLOYEE" in the Sorter transformation to a port "name" in the Expression transformation.
Link two static ports.
Link ports between transformations in the same manner that you do for other mappings.
0 COMMENTS
We’d like to hear from you!