Oracle数据库连接中Provider=OraOleDb.Oracle.1与Provider=MSDAORA什么区别

连接Oracle数据库

摘自：http://blog.csdn.net/gyming/article/details/17143153

连接字符串:
1.OleDB连接驱动OraOLEDB.Oracle
    Oracle公司提供的OleDB驱动，Provider需要根据实际情况修改,支持32bit与64bit,需要安装Oracle Data Provider for OLE DB.
    连接字符串:
    connectionString="provider=OraOLEDB.Oracle;Persist Security Info=False;User ID=UserName;Data Source=DataBase;Extended Properties='';Password=Password"
    或
    connectionString="provider=OraOLEDB.Oracle.1;Persist Security Info=False;User ID=UserName;Data Source=DataBase;Extended Properties='';Password=Password"

2.OleDB连接驱动MSDAORA
    Microsoft公司提供的OleDB驱动，Provider需要根据实际情况修改，只支持32bit.
    连接字符串:
    connectionString="Provider=MSDAORA;Data Source=dataSource;User Id=userid;Password=password;"
    或
    connectionString="Provider=MSDAORA.1;Data Source=dataSource;User Id=userid;Password=password;"

3.OracleClient连接
    Microsoft公司提供,支持32bit与64bit,已建议作废.
    连接字符串:
    connectionString="Server=tnsnames;User Id=userid;Password=password;" providerName="System.Data.OracleClient"

对于各种数据库的连接方式，可参考www.connectionstrings.com

 

连接示例1:

 public static bool TestDB()
  {
      string connString = "Provider=MSDAORA;Data Source=dataSource;User Id=userid;Password=password;";
      try
      {
          DbConnection conn = new System.Data.OleDb.OleDbConnection(connString);
          try
          {
              conn.Open();
              conn.Close();
              MessageBox.Show("连接正常", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
              return true;
          }
          catch (Exception e)
          {
              MessageBox.Show(e.Message, e.Source + e.TargetSite, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
              return false;
          }
          finally
          {
              conn.Dispose();
          }
      }
      catch (Exception e)
      {
          MessageBox.Show(e.Message, e.Source + e.TargetSite, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
          return false;
      }
  }

 

连接示例2:

 public static bool TestDB()
  {
      string connString = "Provider=MSDAORA;Data Source=dataSource;User Id=userid;Password=password;";
      try
      {
          using (DbConnection conn = new System.Data.OleDb.OleDbConnection(connString))
          {
              conn.Open();
              conn.Close();
              MessageBox.Show("连接正常", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
              return true;
          }
      }
      catch (Exception e)
      {
          MessageBox.Show(e.Message, e.Source + e.TargetSite, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
          return false;
      }
  }