.net连接oracle(无客户端)

string _conString = "Host=192.168.1.1;Port=1521;User ID=userid;Password=password;SID=sid";
List<Dictionary<string,object>> dics = new List<Dictionary<string,object>>();
OracleConnection conn = new OracleConnection( _conString );
conn.Open();
OracleCommand cmd = conn.CreateCommand();
cmd.CommandText = "select * from table";
OracleDataReader reader = cmd.ExecuteReader();
while( reader.Read() )
{
Dictionary<string,object> dic = new Dictionary<string,object>();
int fieldCount = reader.FieldCount;
for( int i = 0; i < fieldCount; i ++ )
{
dic.Add( reader.GetName(i) , reader[i] );
}
dics.Add( dic );
}
conn.Close();