繁體中文当前位置: 首页 > 图文教程 > 网络编程 > ASP.NET > ASP.NET连SQL7接口源代码
- ASP.NET
- Check Your Internet Connection With C#
- Essential .NET读书笔记
- 可用来显示空值的时间选择控件3
- 学习Keny boy sps区域列表的管理入口程序
- [译]Visual Basic 2005在语言上的增强（十）应用程序级别事件
- 什么时候应该使用 ==？什么时候应该使用 Equals？
- “String.Equals(string)”和“==”那个快？
- 应用ADO.net得到系统表信息
- 不会被其他窗体遮挡的抓图，使用API的PrintWindow函数
- 关于.net下服务安装
- 水晶报表4.6的使用示例
- 超大正整数加法与乘法最笨方法实现
- 实现web页面的局部刷新
- 动态生成带事件的MsFlexGrid
- 一些codedom的资料。
- WML教程3：任务与导航－赋值与数据交换
- WML教程7：WML的事件
- WML教程10：分组选择控件（Optgroup）和复杂实例
- WML教程5：任务和任务屏蔽
- VS.NET安装部署深入研究
ASP.NET连SQL7接口源代码
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-11-03 浏览: 169 ::
收藏到网摘: n/a
The following example shows what a simple ADO.NET application that connects to the Northwind database and returns a list of Categories. The example writes the output to the console, or command prompt.
SqlClient
[Visual Basic]
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports Microsoft.VisualBasic
Public Class Sample
Public Shared Sub Main()
Dim nwindConn As SqlConnection = New SqlConnection("Data Source=localhost;" & _
"User Id=sa;Password=pwd;Initial Catalog=northwind")
Dim catCMD As SqlCommand = nwindConn.CreateCommand()
catCMD.CommandText = "SELECT CategoryID, CategoryName FROM Categories"
nwindConn.Open()
Dim myReader As SqlDataReader = catCMD.ExecuteReader()
Do While myReader.Read()
Console.WriteLine(vbTab & "{0}" & vbTab & "{1}", myReader.GetInt32(0), myReader.GetString(1))
Loop
myReader.Close()
nwindConn.Close()
End Sub
End Class
[C#]
using System;
using System.Data;
using System.Data.SqlClient;
class Sample
{
public static void Main()
{
SqlConnection nwindConn = new SqlConnection("Data Source=localhost;User Id=sa;Password=pwd;Initial Catalog=northwind");
SqlCommand catCMD = nwindConn.CreateCommand();
catCMD.CommandText = "SELECT CategoryID, CategoryName FROM Categories";
nwindConn.Open();
SqlDataReader myReader = catCMD.ExecuteReader();
while (myReader.Read())
{
Console.WriteLine("\t{0}\t{1}", myReader.GetInt32(0), myReader.GetString(1));
}
myReader.Close();
nwindConn.Close();
}
}
OleDb
[Visual Basic]
Imports System
Imports System.Data
Imports System.Data.OleDb
Imports Microsoft.VisualBasic
Public Class Sample
Public Shared Sub Main()
Dim nwindConn As OleDbConnection = New OleDbConnection("Provider=SQLOLEDB;Data Source=localhost;" & _
"User Id=sa;Password=pwd;Initial Catalog=northwind")
Dim catCMD As OleDbCommand = nwindConn.CreateCommand()
catCMD.CommandText = "SELECT CategoryID, CategoryName FROM Categories"
nwindConn.Open()
Dim myReader As OleDbDataReader = catCMD.ExecuteReader()
Do While myReader.Read()
Console.WriteLine(vbTab & "{0}" & vbTab & "{1}", myReader.GetInt32(0), myReader.GetString(1))
Loop
myReader.Close()
nwindConn.Close()
End Sub
End Class
[C#]
using System;
using System.Data;
using System.Data.OleDb;
class Sample
{
public static void Main()
{
OleDbConnection nwindConn = new OleDbConnection("Provider=SQLOLEDB;Data Source=localhost;User Id=sa;Password=pwd;Initial Catalog=northwind");
OleDbCommand catCMD = nwindConn.CreateCommand();
catCMD.CommandText = "SELECT CategoryID, CategoryName FROM Categories";
nwindConn.Open();
OleDbDataReader myReader = catCMD.ExecuteReader();
while (myReader.Read())
{
Console.WriteLine("\t{0}\t{1}", myReader.GetInt32(0), myReader.GetString(1));
}
myReader.Close();
nwindConn.Close();
}
}
评论 (0) All
