What is the functional difference b/w fusion_ora_ess.request_history and fusion.ess_request_history

Summary:

What is the functional difference between fusion_ora_ess.request_history and fusion.ess_request_history and please explain ErrorType codes present in fusion.ess_request_history table

Content (please ensure you mask any confidential information):

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

#Fusion

#BIP

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

select

from
fusion.ess_request_history erh, — has ErrorType column
fusion_ora_ess.request_history frh

where 1=1

and erh.requestid = frh.requestid(+)