SqlConnection sqlConnection = new SqlConnection(myConnString); sqlConnection.Open();//打开数据库 String sql = "select username,password from Users where Username='" + username + "'and Password='" + password + "'";//SQL查询语句 SqlCommand sqlCommand = new SqlCommand(sql, sqlConnection);//...
假设你下载了SQL Server Manager Studio,并有相关的usernamepassword,能够使用用SQL Server验证。 这里你能够选择数据源,假设选择 MicroSoft SQL Server,以下连接到一个数据库,第一个选择或输入一个数据库前提是你已经通过SQL Server把数据库文件附加到server上。做法是先把数据库文件移到SQL Server存放数据库的地方,在...
.ConnectionString = "Provider = microsoft.jet.oledb.4.0;data source=" & App.Path & "\db_data.mdb;Jet OLEDB:DataBase password=abc123;persist security info=false" .Open End With Dim login_rs As New ADODB.Recordset Dim login_sql As String ...
'Imports System.Data.SqlClient Dim con As New SqlClient.SqlConnection Dim strCon As String = "Data Source=SERVERNAME\SQLEXPRESS;Initial Catalog=SQLEXPRESS;Integrated Security=SSPI;Connection Timeout=10;" 'NT Authentication 'For SQL Authentication Dim strCon As String = "Data Source=SERVERNAME\SQ...
本文介绍如何使用 ADO.NET 和 Visual Basic .NET 以编程方式创建 Microsoft SQL Server 数据库。 原始产品版本:ADO.NET、Visual Basic .NET 原始KB 编号:305079 摘要 程序员通常需要以编程方式创建数据库。 本文介绍如何使用 ADO.NET 和 Visual Basic .NET 以编程方式创建SQL Server数...
mCnnDB.ConnectionString = "Data Source=’" & dsnName & "’User ID=’" & UserID & "’;" & _ "Password=’" & UserPwd & " mCnnDB.Open() End Sub SQL Server数据库是Microsoft开发的一种广泛使用的后台数据库。访问SQL Server可以通过指明ODBC驱动程序为SQL Server来实现,即在连接字符串中要有...
No changes need to be made to the connection string – all you need to do is to change the server name to the name of your SQL Server 2008 database server.Visual Studio 2005Even before applying the SQL Server 2008 support update, applications written with Visual Studio 2005 can ...
Listing 1. Using Visual Basic 6 to retrieve information from SQL Server 2005 Express 2005 by file pathCopy Dim cn As ADODB.Connection Set cn = New Connection cn.ConnectionString = "Provider=SQLNCLI.1;Integrated Security=SSPI;" & _ "Persist Security Info=False;" & _ "AttachDBFileName=" ...
Inside theForm1class declaration, but outside any other members, declare a private variable of typeSqlCeConnectionnamed_conn, as shown in the following code example. Private _conn As SqlCeConnection Now, you must create a constructor for theForm1class, which is very simple in Visual Basic.NET...
您会发现,Visual Studio 2005 可以显示对象的所有成员,也可以通过筛选列表只显示最常用的成员,从而使您轻松找到所需的成员(例如,Connection的String属性)。 Visual Studio 2005 还进一步扩展了常见的 Visual Basic 代码展开功能。您已经习惯了在起始处键入Function声明,然后让 IDE 自动插入End Function。现在,这已经扩展...