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
  • Data Engineering Quality 10.2.1
  • All Products

Table of Contents

Search

  1. Preface
  2. Informatica Developer
  3. The Model Repository
  4. Searches in Informatica Developer
  5. Connections
  6. Physical Data Objects
  7. Flat File Data Objects
  8. Logical View of Data
  9. Viewing Data
  10. Application Deployment
  11. Object Import and Export
  12. Data Type Reference
  13. Keyboard Shortcuts
  14. Connection Properties

Developer Tool Guide

Developer Tool Guide

Back Next

Run-time Processing of Control Files

Run-time Processing of Control Files

When you develop a mapping, you define data object read properties that determine how data is read from a flat file. The Data Integration Service can process the columns of the flat file data object that is based on a control file.
When the Data Integration Service constructs the column metadata based on the control file, it applies the following criteria for processing data:
The Data Integration Service applies default values for the column properties that you do not specify for the flat file data object
The Data Integration Service applies the default run-time properties of the flat file data object when you do not specify the run-time column properties in the control file. When you have additional columns in the control file without a data type, precision, or scale, the Data Integration Service uses the default data type, precision, and scale.
The Data Integration Service processes data as NULL for columns that do not appear in the control file but are present in the flat file data object
When the column in the flat file data object does not exist in the control file, the Data Integration Service processes the data as NULL during data preview. During run time, the Data Integration Service cannot process the column as that column does not exist in the control file.
The Data Integration Service fails mapping when the source metadata mismatches with a control file
The Data Integration Service fails to process the data when the source metadata based on the control file does not match the input data. For example, the Data Integration Service fails the mapping when the source contains a data type in the control file that is not compatible with the data type in the source.
0 COMMENTS
We’d like to hear from you!