C#与Oracle数据库的连接 oracleCommand.Connection=oracleConnect; 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 能问下吗,我按照这个改了,怎么会在加的oracleCommand.Connection=oracleConnect;里面报oracleCommand错误,缺少using什么的。其他的oracleCommand也没问题? oracleCommand.Connection=oracleConnect;是加在哪句话下面啊? OracleCommand oracleCommand = new OracleCommand();oracleCommand.Connection=oracleConnect; Connection在Data.OracleClient.OracleCommand中不存在 using System;using System.Data.OracleClient;namespace Project1{ class Class1 { [STAThread] static void Main(string[] args) { String connStr = "user id=tt;password=tt;data source=tt;"; OracleConnection oracleConnect = new OracleConnection(connStr); OracleCommand oracleCommand = new OracleCommand(); oracleCommand.CommandText = "select * from customer"; oracleCommand.Connection=oracleConnect; try { oracleConnect.Open(); OracleDataReader oracleDataReader = oracleCommand.ExecuteReader(); } catch (Exception e) { Console.WriteLine(e.Message); } finally { oracleConnect.Close();//使用完了链接一定要即时关闭 } } }} OracleCommand oracleCommand = new OracleCommand(); oracleCommand.CommandText = "select * from customer"; oracleCommand.Connection=oracleConnect;改成OracleCommand oracleCommand = new OracleCommand(oracleConnect); oracleCommand.CommandText = "select * from customer"; 请问一个socket通信中,byte[]转换为struct的问题? 窗口的关闭 图片放大边缘 ScaleWidth是什么意思? SQL关于伪列 正则表达式求解 怎么用c#查找域名的注册信息?(已有一个参考例子,请帮忙,谢谢) 求解优化问题,高手帮忙 C#的有源代码的程序问题??谢谢!--急 请教:Main(string [] args) 中的参数args 实际上有什么用途?可以举一些例子吗? 急,如何实现这样的效果?在控制台应用程序下 简单问题,知道的人告诉一下.
是加在哪句话下面啊?
oracleCommand.Connection=oracleConnect;
using System.Data.OracleClient;namespace Project1
{
class Class1
{
[STAThread]
static void Main(string[] args)
{
String connStr = "user id=tt;password=tt;data source=tt;";
OracleConnection oracleConnect = new OracleConnection(connStr); OracleCommand oracleCommand = new OracleCommand();
oracleCommand.CommandText = "select * from customer";
oracleCommand.Connection=oracleConnect; try
{
oracleConnect.Open();
OracleDataReader oracleDataReader = oracleCommand.ExecuteReader();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
oracleConnect.Close();//使用完了链接一定要即时关闭
}
}
}
}
oracleCommand.CommandText = "select * from customer";
oracleCommand.Connection=oracleConnect;改成OracleCommand oracleCommand = new OracleCommand(oracleConnect);
oracleCommand.CommandText = "select * from customer";