Source System ID for Work Terms

Summary:

Sample Query to extract SSID for Worker.dat >>>> Work Terms object upload

Content (required):

We have a requirement to extract SSID of work Terms object for Worker upload. I was able to get the Assignment SSID and replaced the Object name as 'Work Terms' but the data model gives out blank out put.

Kindly assist with a sample query

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

21C

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