How to join INV_TXN_REQUEST_HEADERS with INV_TXN_REQUEST_LINES?

Summary:

I want to join INV_TXN_REQUEST_HEADERS and INV_TXN_REQUEST_LINES, so I use HEADER_ID as a join key.

But execution data is not be 1=1 low.

Which column should I add?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):