Pulling data from Sharepoint 2010 Lists into Oracle DB

Hi All,

I'm working on Pulling data from Sharepoint 2010 Lists into Oracle DB. Its a one-time data migration. Tried the following ways,
1.Using HTTP Smart service(getting connection refused error, gave all the authentication needed)
2.Using Web API(getting authentication error even after providing all authentication, we don't have SSL Certificates)

I'm using "myserver/_vti_bin/ListData.svc" for REST Services. Please suggest me the best solution.

Thanks in Advance

Update: Getting the following error: