Reading file and dump data into database using BPEL process

I have to read CSV files and insert data into database.. To achieve this, I have created asynchronous bpel process. Added Filed Adapter and associated it with Receive activity.. Added DB adapter and associated with Invoke activity. Total two receive activity are available in process, when tried to Test through EM, only first receive activity is completed, and waiting on second receive activity. Please suggest how to proceed with..
Thanks, Manoj.

Deepak, thank for your reply.. As per your suggestion I created BPEL composite with
template "Define Service Later". I followed below steps, please correct me if I am wrong/missing anything. Your help is highly appreciated...
Step 1-
Created File adapter and corresponding Receive Activity (checkbox create instance is checked) with input variable.
Step 2 - Then in composite.xml, dragged the
web service under "Exposed Services" and linked the web service with Bpel process.
Step 3 - Opened .bpel file and added the DB adapter with corresponding Invoke activity, created input variable. Web service is created of Type "Service" with existing WSDL(first option aginst WSDL URL).
and added Assign activity between receive and invoke activities.
Deployed the composite to server, when triedTest it
manually through EM, it is promting for input like "subElmArray Size", then I entered value as 1 with corresponding values for two elements and click on Test We Service button.. Ptocess is completing in error. The error is
Error Message:
Fault ID
service:80020
Fault Time
Sep 20, 2013 11:09:49 AM
Non Recoverable System Fault :
Correlation definition not registered. The correlation set definition for operation Read, process default/FileUpload18!1.0*soa_3feb622a-f47e-4a53-8051-855f0bf93715/FileUpload18, is not registered with the server. The correlation set was not defined in the process. Redeploy the process to the containe

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