I have done the following thing:
1. Create a journal (CRTJRN)
2. start journalling the target physical file (STRJRN)
3. Get the report with help of DSPJRN command.
Is this OK, will it have any impact or is there any other easy way to do this?
That’s the right way to go about it. Just insure the audit journal is managed by *USER and not *SYSTEM or they may be deleted before you have the chance to generate a report.