清除devart中的連接池嗎？

Question

我有一個Windows服務應用程序，每分鍾連接到數據庫。 Somethimes我得到這個錯誤：

ORA-20110：ORA-06508：PL / SQL：找不到正在調用的程序單元

解決方案是關閉並在plsql中重新連接數據庫，但我想在應用程序端執行此操作。

因此，我需要禁用所有連接池並嘗試重新連接數據庫。 我如何使用devart做到這一點？

這是我的聯系

this.ConnectMode = OracleConnectMode.Default;
this.Direct = true;
this.Close();
this.Server = ConfigurationManager.AppSettings["db_hostname"];
this.Port = Convert.ToInt32(ConfigurationManager.AppSettings["db_port"]);
if (db_connection_type == "SID")
   this.Sid = ConfigurationManager.AppSettings["db_sid"];
else
   this.ServiceName = ConfigurationManager.AppSettings["db_sid"];
this.UserId = db_username;
this.Password = db_password;
this.Open();

Answer 1

我找到了oracleconnection ownclass的clearPool

// C#
// Sample demonstrating the use of ClearPool API in OracleConnection class

using System;
using Oracle.DataAccess.Client;

class ClearPoolSample
{
  static void Main()
  {
    Console.WriteLine("Running ClearPool sample..." );
    // Set the connection string
    string strConn = "User Id=scott;Password=tiger;Data Source=oracle;" +
                     "Min pool size=5;";
    OracleConnection conn = new OracleConnection(strConn);

    // Open the connection
    conn.Open();

    // Clears the connection pool associated with connection 'conn'
    OracleConnection.ClearPool (conn);

    // This connection will be placed back into the pool
    conn.Close ();

    // Open the connection again to create additional connections in the pool
    conn.Open();

    // Create a new connection object
    OracleConnection connNew = new OracleConnection(strConn);

    // Clears the pool associated with Connection 'connNew'
    // Since the same connection string is set for both the connections,
    // connNew and conn, they will be part of the same connection pool.
    // We need not do an Open() on the connection object before calling
    // ClearPool
    OracleConnection.ClearPool (connNew);

    // cleanup
    conn.Close();
    Console.WriteLine("Done!");
  }
}