A debugger is used to troubleshoot the errors in a Informatica mapping that you find before running a session or after saving the mapping and running the session. To debug a mapping, first we need to configure the debugger and then run the same within the Mapping Designer.
The Debugger makes use of the existing session or creates a debug session of its own to debug the mapping.
Debugging can be done in either of the below situations.
- Before running the session: Once you are done with the mapping you can do the debugging on the mapping before making the session to check the initial results
- After you run a session: When you encounter any errors while running the sessions then you can go to the mapping and start debugger with the existing session