Oracle: 命名空间using System.Data.OledbClient;
SqlServer: 命名空间using System.Data.SqlClient;

解决方案 »

  1.   

    Oracle: 连接字符串就一个区别Provider=MSDAORA.1;
    SqlServer: 连接字符串Provider=SQLOLEDB.1;
      

  2.   

    SqlServer: 命名空间using System.Data.SqlClient.连接串:"user id=sa;password=xxx;data source='xxx';persist security info=False;initial catalog=xxxx"
    Oracle: 命名空间using System.Data.OracleClient.连接串:"Data Source=xxx;Password=xxx;User ID=system;Integrated Security=no";
      

  3.   

    Oracle: 命名空间using System.Data.OledbClient;
    SqlServer: 命名空间using System.Data.SqlClient;