How to call c# webservice in Flex which then calls oracle stored procedure

Hi all,

I am calling c# webservice having webmethod which then calls one Oracle stored procedure. This Oracle stored procedure returns ref cursor i.e multiple row output.

Webservice webmethod is 'getEmpData' has two input variables v_city, v_state.
[WebMethod]
public DataSet GetEmpData(string v_city, string v_state)
{

This webmethod then calls 'Emp_data' oracle stored procedure which takes these two input parameters and returns Ref cursor.

How can i retrieve this oracle Ref cursor data in Flex using webservice component?

Thank you