Asp.net連接數據庫例程詳解
Asp.net連接SQL Server2000數據庫例程詳解:
<%@ Import Namespace="System.Data" %>
<%@ Import NameSpace="System.Data.SqlClient" %>
<script laguage="VB" runat="server">
sub page_load(sender as Object,e as EventArgs)
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim ds as DataSet
'1.connect to sql server
myConnection = New SqlConnection( "server=localhost;database=Pubs;uid=ueytjdf;pwd=doekdf" )
myConnection.Open()
la1.text="Connection Opened!"
'2.Create a table
myCommand = New SqlCommand( "CREATE TABLE [test] ([id] [int] IDENTITY (1, 1) NOT NULL ,[name] [char] (10) COLLATE Chinese_PRC_CI_AS NULL ,[sex] [char] (10) COLLATE Chinese_PRC_CI_AS NULL )", myConnection )
myCommand.ExecuteNonQuery()
la2.text="New table created!"
'2 添加紀錄
myCommand = New SqlCommand( "Insert into [test] (name,sex) values( '黃志文','男' )", myConnection )
myCommand.ExecuteNonQuery()
la3.text="New Record Inserted!"
'3 更新數據
myCommand = New SqlCommand( "UPDATE [test] SET name='Smith' where name='李明'", myConnection )
myCommand.ExecuteNonQuery()
la4.text="Record Updated!"
'4 刪除數據
myCommand = New SqlCommand( "delete from [test] where name='Smith'", myConnection )
myCommand.ExecuteNonQuery()
la5.text="Record Deleted!"
'5 用DataGrid顯示數據
myCommand = New SqlCommand( "select * from [test]", myConnection )
MyDataGrid.DataSource=myCommand.ExecuteReader()
MyDataGrid.DataBind()
end sub
</script>
<html>
<body>
<asp:label id="la1" runat="server" /><br>
<asp:label id="la2" runat="server" /><br>
<asp:label id="la3" runat="server" /><br>
<asp:label id="la4" runat="server" /><br>
<asp:label id="la5" runat="server" /><br>
<ASP:DataGrid id="MyDataGrid" runat="server"
BorderColor="black"
BorderWidth="1"
GridLines="Both"
CellPadding="3"
CellSpacing="0"
Font-Name="Verdana"
Font-Size="10pt"
HeaderStyle-BackColor="#aaaadd"
AlternatingItemStyle-BackColor="#eeeeee"
>
</asp:DataGrid>
</body>
</html>
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ASP.net連接access數據庫例程
<%@ Import Namespace="System.Data" %>
<%@ Import NameSpace="System.Data.OleDb" %>
<script laguage="VB" runat="server">
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
sub page_load(sender as Object,e as EventArgs)
'1.連接數據庫
dim dbname as string
dbname=server.mappath("authors.mdb")
myConnection = New OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source="&dbname )
myConnection.Open()
la1.text="Connection Opened!"
'2.添加記錄
myCommand = New OleDbCommand( "Insert INTO Authors(Authors,country) Values('Simson','usa')", myConnection )
myCommand.ExecuteNonQuery()
la2.text="New Record Inserted!"
'3 更新數據(Access)
myCommand = New OleDbCommand( "UPDATE Authors SET Authors='Bennett' WHERE Authors = 'Simson'", myConnection )
myCommand.ExecuteNonQuery()
la3.text="Record Updated!"
'4 刪除數據（access）
myCommand = New OleDbCommand( "DELETE FROM Authors WHERE Authors = 'David'", myConnection )
myCommand.ExecuteNonQuery()
la4.text="Record Deleted!"
'5 使用DateGrid顯示數據
myCommand = New OleDbCommand( "select * FROM Authors", myConnection )
MyDataGrid.DataSource=myCommand.Executereader()
MyDataGrid.DataBind()
end sub
</script>
<html>
<body>
<asp:label id="la1" runat="server" /><br>
<asp:label id="la2" runat="server" /><br>
<asp:label id="la3" runat="server" /><br>
<asp:label id="la4" runat="server" /><br>
<ASP:DataGrid id="MyDataGrid" runat="server"
BorderColor="black"
BorderWidth="1"
GridLines="Both"
CellPadding="3"
CellSpacing="0"
Font-Name="Verdana"
Font-Size="10pt"
HeaderStyle-BackColor="#aaaadd"
AlternatingItemStyle-BackColor="#eeeeee"
>
</asp:DataGrid>
</body>
</html>
Asp.net連接SQL Server2000數據庫例程(C#):
using System.Data.SqlClient;
private void Page_Load(object sender, System.EventArgs e)
{
SqlConnection myConnection;
SqlCommand myCommand;
DataSet ds;
//1.connect to sql server
myConnection = new SqlConnection( "server=localhost;database=Pubs;uid=ueytjdf;pwd=doekdf" );
myConnection.Open();
la1.text="Connection Opened!" ;
//2.Create a table
myCommand = new SqlCommand( "CREATE TABLE [test] ([id] [int] IDENTITY (1, 1) NOT NULL ,[name] [char] (10) COLLATE Chinese_PRC_CI_AS NULL ,[sex] [char] (10) COLLATE Chinese_PRC_CI_AS NULL )", myConnection );
myCommand.ExecuteNonQuery();
la2.text="New table created!" ;
//2 添加紀錄
myCommand = new SqlCommand( "Insert into [test] (name,sex) values( '黃志文','男' )", myConnection ) ;
myCommand.ExecuteNonQuery() ;
la3.text="New Record Inserted!" ;
//3 更新數據
myCommand = new SqlCommand( "UPDATE [test] SET name='Smith' where name='李明'", myConnection ) ;
myCommand.ExecuteNonQuery() ;
la4.text="Record Updated!" ;
//4 刪除數據
myCommand = new SqlCommand( "delete from [test] where name='Smith'", myConnection ) ;
myCommand.ExecuteNonQuery() ;
la5.text="Record Deleted!";
//5 用DataGrid顯示數據
myCommand = new SqlCommand( "select * from [test]", myConnection ) ;
MyDataGrid.DataSource=myCommand.ExecuteReader();
MyDataGrid.DataBind() ;
}
ASP.net連接access數據庫例程c#:
using System.Data.OleDb;
OleDbConnection myConnection;
OleDbCommand myCommand;
void page_load()
{
//1.連接數據庫
string dbname;
dbname=Server.MapPath("authors.mdb");
myConnection = new OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source=" + dbname );
myConnection.Open();
la1.text="Connection Opened!";
//2.添加記錄
myCommand = new OleDbCommand( "Insert INTO Authors(Authors,country) Values('Simson','usa')", myConnection );
myCommand.ExecuteNonQuery();
la2.text="New Record Inserted!";
//3 更新數據(Access)
myCommand = new OleDbCommand( "UPDATE Authors SET Authors='Bennett' WHERE Authors = 'Simson'", myConnection );
myCommand.ExecuteNonQuery();
la3.text="Record Updated!";
//4 刪除數據（access）
myCommand = new OleDbCommand( "DELETE FROM Authors WHERE Authors = 'David'", myConnection );
myCommand.ExecuteNonQuery();
la4.text="Record Deleted!";
//5 使用DateGrid顯示數據
myCommand = new OleDbCommand( "select * FROM Authors", myConnection );
MyDataGrid.DataSource=myCommand.Executereader();
MyDataGrid.DataBind();
}