Errorwhile inserting extracted information in table in oracle database

Dear Anil,

Thank you for your repsonse. Yes I am new to UiPath .I put a log message details and it shows system.datarow.collection from dtOutput

but i am not sure if values are getting populated in that . I am attaching the screenshot from Locals panel also. It would really be grateful if you could see once and suggest me what is going wrong in the workflow.