Application.ExistsOnSqlServer(String, String, String, String) 方法

定义

命名空间:

Microsoft.SqlServer.Dts.Runtime

程序集:

Microsoft.SqlServer.ManagedDTS.dll

返回一个布尔值，该值指示指定包是否存在于SQL Server实例上。

public:
 bool ExistsOnSqlServer(System::String ^ packagePath, System::String ^ serverName, System::String ^ serverUserName, System::String ^ serverPassword);

public bool ExistsOnSqlServer (string packagePath, string serverName, string serverUserName, string serverPassword);

member this.ExistsOnSqlServer : string * string * string * string -> bool

Public Function ExistsOnSqlServer (packagePath As String, serverName As String, serverUserName As String, serverPassword As String) As Boolean

参数

packagePath

String

您所查找的包：

serverName

String

要搜索该包的 SQL Server 实例的名称。

serverUserName

String

用于对 SQL Server 的实例进行身份验证的用户名。

serverPassword

String

指定的 serverUserName 的密码。

返回

Boolean

如果包存在于SQL Server的指定实例上，则为 true。 如果包不存在，则为 false。

示例

下面的代码示例创建一个SQL Server文件夹，验证它是否存在，然后删除该文件夹并重新检查其是否存在。 它还保存包，并验证是否已使用 ExistsOnSqlServer 该方法保存包。

static void Main(string[] args)  
        {  
            // The variable pkg points to the location  
            // of the ExecuteProcess package sample   
            // that is installed with the SSIS samples.  
            string p = @"C:\Program Files\Microsoft SQL Server\100\Samples\Integration Services\Package Samples\ExecuteProcess Sample\ExecuteProcess\UsingExecuteProcess.dtsx";  

            Application app = new Application();  

            // Create a folder on SQL Server in the msdb database.  
            app.CreateFolderOnSqlServer("\\", "myNewFolder", "yourserver", null, null);  

            // Verify that the folder exists by using ExistsOnSqlServer method.  
            Boolean folderExists = app.FolderExistsOnSqlServer("myNewFolder", "yourserver", null, null);  
            Console.WriteLine("Folder exists? {0}", folderExists);  

            // Load a package and save it.  
            Package pkg = app.LoadPackage(p, null);  
            app.SaveToSqlServerAs(pkg, null, "newPkg", "yourserver", null, null);  

            // Verify that the package was saved.  
            Boolean packageExists = app.ExistsOnSqlServer("newPkg", "yourserver", null, null);  
            Console.WriteLine("Package exists? {0}", packageExists);  

            //Remove the folder.  
            app.RemoveFolderFromSqlServer("myNewFolder", "yourserver", null, null);  

            // Verify that the folder was removed by using the ExistsOnSqlServer method.  
            folderExists = app.FolderExistsOnSqlServer("myNewFolder", "yourserver", null, null);  
            Console.WriteLine("Folder exists? {0}", folderExists);  
        }  

Sub Main(ByVal args() As String)  
            ' The variable pkg points to the location  
            ' of the ExecuteProcess package sample   
            ' that is installed with the SSIS samples.  
            Dim p As String =  "C:\Program Files\Microsoft SQL Server\100\Samples\Integration Services\Package Samples\ExecuteProcess Sample\ExecuteProcess\UsingExecuteProcess.dtsx"   

            Dim app As Application =  New Application()   

            ' Create a folder on SQL Server in the msdb database.  
            app.CreateFolderOnSqlServer("\\", "myNewFolder", "yourserver", Nothing, Nothing)  

            ' Verify that the folder exists by using ExistsOnSqlServer method.  
            Dim folderExists As Boolean =  app.FolderExistsOnSqlServer("myNewFolder","yourserver",Nothing,Nothing)   
            Console.WriteLine("Folder exists? {0}", folderExists)  

            ' Load a package and save it.  
            Dim pkg As Package =  app.LoadPackage(p,Nothing)   
            app.SaveToSqlServerAs(pkg, Nothing, "newPkg", "yourserver", Nothing, Nothing)  

            ' Verify that the package was saved.  
            Dim packageExists As Boolean =  app.ExistsOnSqlServer("newPkg","yourserver",Nothing,Nothing)   
            Console.WriteLine("Package exists? {0}", packageExists)  

            'Remove the folder.  
            app.RemoveFolderFromSqlServer("myNewFolder", "yourserver", Nothing, Nothing)  

            ' Verify that the folder was removed by using the ExistsOnSqlServer method.  
            folderExists = app.FolderExistsOnSqlServer("myNewFolder", "yourserver", Nothing, Nothing)  
            Console.WriteLine("Folder exists? {0}", folderExists)  
End Sub  

示例输出：

Folder exists? True

Package exists? True

Folder exists? False