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

Generate a Mapping from an SQL Query with an Unsupported Function

Generate a Mapping from an SQL Query with an Unsupported Function

When the Developer tool generates a mapping from SQL, it validates the functions in the query. Use ANSI-compliant SQL to ensure valid mapping generation.
If the Developer tool encounters an unknown function in a valid SQL statement, it might generate a mapping that contains a transformation labeled FIX_ME or an expression labeled FIX_EXPR. Edit these objects to fix the mapping and get valid results. Unknown functions appear as a warning message in the mapping log file.
For example, you use the following SQL statement to generate a mapping: 
SELECT unknownFunctionABC(c_custkey,c_comment) from customer
The following image shows how the mapping generated from this SQL statement includes an Expression transformation that requires fixing:
The mapping contains a Read transformation, an Expression transformation, and a target transformation. The Expression transformation is named exp_FIX_ME and is marked with an error icon.
Notice that the Expression transformation is marked with an error icon. Use the Ports tab to edit the erroneous expression. The mapping is not valid until you correct the error.
0 COMMENTS
We’d like to hear from you!