Oracle方面
１．创建Oracle过程存储
create or replace procedure proce_test(paramin in varchar2,paramout out varchar2,paraminout in out varchar2)
as
  varparam varchar2(28);
begin
  varparam:=paramin;
  paramout:=varparam|| paraminout; 
end;
２．测试过程存储
declare
  param_out varchar2(28);
  param_inout varchar2(28);
begin
  param_inout:='ff';  
  proce_test('dd',param_out,param_inout);  
  dbms_output.put_line(param_out);
end;

C#方面
引用Oracle组件
using System;
using System.Data;
using System.Data.OracleClient;   

namespace WebApplication4
{
     public class OraOprater
     {
         private OracleConnection conn=null;
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