C#调用Oracle存储过程

C#调用Oracle存储过程的代码如下所示：

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Collections.ObjectModel;
  4 using System.ComponentModel;
  5 using System.Configuration;
  6 using System.Data;
  7 using System.Data.OracleClient;
  8 using System.Drawing;
  9 using System.Linq;
 10 using System.Reflection;
 11 using System.Text;
 12 using System.Threading.Tasks;
 13 using System.Windows.Forms;
 14 
 15 namespace ExecuteProcByOracle
 16 {
 17     public partial class Form1 : Form
 18     {
 19         public Form1()
 20         {
 21             InitializeComponent();
 22         }
 23 
 24         private void Btn_LoadData_Click(object sender, EventArgs e)
 25         {
 26             // 存储过程名称
 27             string strProcName = "usp_yngr_getInfectionCard";
 28             // 存储过程参数
 29             OracleParameter[] parameters = { 
 30                                         new OracleParameter("V_BeginTime",OracleType.VarChar),
 31                                         new OracleParameter("V_EndTime",OracleType.VarChar),
 32                                         new OracleParameter("V_DateType",OracleType.Number),
 33                                         new OracleParameter("V_PtName",OracleType.VarChar),
 34                                         new OracleParameter("V_PtChartNo",OracleType.VarChar),
 35                                         new OracleParameter("V_DeptCode",OracleType.VarChar),
 36                                         new OracleParameter("V_CheckedStatus",OracleType.VarChar),
 37                                         // 返回值的类型是游标类型
 38                                         new OracleParameter("cur_out",OracleType.Cursor)
 39                                         };
 40             // 设置存储过程参数数组的值和参数的类型
 41             parameters[0].Value = "2017-06-01";
 42             parameters[0].Direction = ParameterDirection.Input;
 43             parameters[1].Value = "2017-07-31";
 44             parameters[1].Direction = ParameterDirection.Input;
 45             parameters[2].Value = 1;
 46             parameters[2].Direction = ParameterDirection.Input;
 47             parameters[3].Value = "";
 48             parameters[3].Direction = ParameterDirection.Input;
 49             parameters[4].Value = "";
 50             parameters[4].Direction = ParameterDirection.Input;
 51             parameters[5].Value = "";
 52             parameters[5].Direction = ParameterDirection.Input;
 53             parameters[6].Value = "1";
 54             parameters[6].Direction = ParameterDirection.Input;
 55             parameters[7].Direction = ParameterDirection.Output;
 56 
 57             this.dgv_Demo.DataSource = LoadData(strProcName, parameters);
 58         }
 59 
 60         private DataTable LoadData(string strProcName, params OracleParameter[] parameters)
 61         {
 62             
 63             DataTable dt = new DataTable();
 64             string strConn = ConfigurationManager.ConnectionStrings["HealthHospInfection"].ConnectionString;
 65             using (OracleConnection conn = new OracleConnection(strConn))
 66             {
 67                 try
 68                 {
 69                     
 70                     OracleCommand cmd = new OracleCommand();
 71                     cmd.CommandText = strProcName;
 72                     cmd.CommandType = CommandType.StoredProcedure;
 73                     cmd.Connection = conn;
 74                     conn.Open();
 75                     if (parameters != null)
 76                     {
 77                         // 添加参数
 78                         cmd.Parameters.AddRange(parameters);
 79                     }
 80 
 81                     // 取数据
 82                     using (OracleDataAdapter adapter = new OracleDataAdapter(cmd))
 83                     {
 84 
 85                         adapter.Fill(dt);
 86                     }
 87                 }
 88                 catch (Exception ex)
 89                 {
 90                     MessageBox.Show("错误:" + ex.Message + "/r/n跟踪:" + ex.StackTrace);
 91                 }
 92                 finally
 93                 {
 94                     conn.Close();
 95                 }
 96             }
 97 
 98             return dt;
 99         }   
100     }
101 }