Erstellen einer Skriptaufgabe, die den Zieladapter für SSIS Parallel Data Warehouse verwendet

Dieser SSIS-Paketskriptcode ist ein Codebeispiel für die Verwendung des SSIS-PDW-Zieladapters. Mit der Skriptaufgabe "Integration Services" können Sie praktisch jeden Vorgang ausführen, der in einer .NET-Anwendung im Kontext eines SSIS-Steuerungsflusses ausgeführt werden kann.

Beispielcode

1. Erstellen Sie eine leere Skriptaufgabe in SSIS.

2. Öffnen Sie die Aufgabe im Skriptaufgaben-Editor, und wählen Sie "Skript bearbeiten" aus.

3. Bearbeiten Sie das Skript, um den unten angegebenen Code zu verwenden. Sie haben das Skript an Ihre Umgebung angepasst, indem Sie die folgenden Änderungen vornehmen:

   • Sie müssen den Namespace des Skripts beibehalten, das von der Skriptaufgabe erstellt wurde. Notieren Sie sich den Namen des Namespacesnamespace ST_<GUID>, und bearbeiten Sie das folgende Skript, und ändern Sie ST_<GUID in die ursprüngliche GUID> der Skriptaufgabe.

   • Ersetzen Sie vier Vorkommen des Platzhalterwerts XXXXXXXX durch die Werte, die für Ihre Umgebung und die beabsichtigte Aktion geeignet sind.

   #region Help:  Introduction to the script task  
   /* The Script Task allows you to perform virtually any operation that can be accomplished in  
    * a .Net application within the context of an Integration Services control flow.   
    *   
    * Expand the other regions which have "Help" prefixes for examples of specific ways to use  
    * Integration Services features within this script task. */  
   #endregion  
   
   #region Namespaces  
   using System;  
   using System.Data;  
   using Microsoft.SqlServer.Dts.Runtime;  
   using System.Windows.Forms;  
   using Microsoft.SqlServer.Management.IntegrationServices;  
   using Microsoft.SqlServer.Dts.Pipeline;  
   using Microsoft.SqlServer.Dts.Pipeline.Wrapper;  
   using System.Runtime.InteropServices;  
   using System.Reflection;  
   #endregion  
   
   namespace ST_<GUID>  
   {  
       /// <summary>  
       /// ScriptMain is the entry point class of the script.  Do not change the name, attributes,  
       /// or parent of this class.  
       /// </summary>  
   [Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]  
   public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase  
   {  
           #region Help:  Using Integration Services variables and parameters in a script  
           /* To use a variable in this script, first ensure that the variable has been added to   
            * either the list contained in the ReadOnlyVariables property or the list contained in   
            * the ReadWriteVariables property of this script task, according to whether or not your  
            * code needs to write to the variable.  To add the variable, save this script, close this instance of  
            * Visual Studio, and update the ReadOnlyVariables and   
            * ReadWriteVariables properties in the Script Transformation Editor window.  
            * To use a parameter in this script, follow the same steps. Parameters are always read-only.  
            *   
            * Example of reading from a variable:  
            *  DateTime startTime = (DateTime) Dts.Variables["System::StartTime"].Value;  
            *   
            * Example of writing to a variable:  
            *  Dts.Variables["User::myStringVariable"].Value = "new value";  
            *   
            * Example of reading from a package parameter:  
            *  int batchId = (int) Dts.Variables["$Package::batchId"].Value;  
            *    
            * Example of reading from a project parameter:  
            *  int batchId = (int) Dts.Variables["$Project::batchId"].Value;  
            *   
            * Example of reading from a sensitive project parameter:  
            *  int batchId = (int) Dts.Variables["$Project::batchId"].GetSensitiveValue();  
            * */  
   
           #endregion  
   
           #region Help:  Firing Integration Services events from a script  
           /* This script task can fire events for logging purposes.  
            *   
            * Example of firing an error event:  
            *  Dts.Events.FireError(18, "Process Values", "Bad value", "", 0);  
            *   
            * Example of firing an information event:  
            *  Dts.Events.FireInformation(3, "Process Values", "Processing has started", "", 0, ref fireAgain)  
            *   
            * Example of firing a warning event:  
            *  Dts.Events.FireWarning(14, "Process Values", "No values received for input", "", 0);  
            * */  
           #endregion  
   
           #region Help:  Using Integration Services connection managers in a script  
           /* Some types of connection managers can be used in this script task.  See the topic   
            * "Working with Connection Managers Programatically" for details.  
            *   
            * Example of using an ADO.Net connection manager:  
            *  object rawConnection = Dts.Connections["Sales DB"].AcquireConnection(Dts.Transaction);  
            *  SqlConnection myADONETConnection = (SqlConnection)rawConnection;  
            *  //Use the connection in some code here, then release the connection  
            *  Dts.Connections["Sales DB"].ReleaseConnection(rawConnection);  
            *  
            * Example of using a File connection manager  
            *  object rawConnection = Dts.Connections["Prices.zip"].AcquireConnection(Dts.Transaction);  
            *  string filePath = (string)rawConnection;  
            *  //Use the connection in some code here, then release the connection  
            *  Dts.Connections["Prices.zip"].ReleaseConnection(rawConnection);  
            * */  
           #endregion  
   
           public static string GetSymbolicName(int errorCode)  
           {  
               string symbolicName = string.Empty;  
               HResults hresults = new HResults();  
   
               foreach (FieldInfo fieldInfo in hresults.GetType().GetFields())  
               {  
                   if ((int)fieldInfo.GetValue(hresults) == errorCode)  
                   {  
                       symbolicName = fieldInfo.Name;  
                       break;  
                   }  
               }  
   
               return symbolicName;  
           }  
        /// <summary>  
           /// This method is called when this script task executes in the control flow.  
           /// Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.  
           /// To open Help, press F1.  
           /// </summary>  
           public void Main()  
           {  
               try  
               {  
                   Package package = new Package();  
                   Executable dataFlowtask = package.Executables.Add("STOCK:PipelineTask");  
   
                   TaskHost taskHost = dataFlowtask as TaskHost;  
                   taskHost.Name = "Data Flow Task";  
   
                   MainPipe pipeline = taskHost.InnerObject as MainPipe;  
   
                   //Connection to the Oracle Source created  
                   ConnectionManager connectionSource = package.Connections.Add("OLEDB");  
                   connectionSource.Name = "OracleSource";  
                   connectionSource.ConnectionString = "Data Source=127.0.0.1;User ID=sa;Password=XXXXXXXX;Provider=OraOLEDB.Oracle.1;Persist Security Info=True;";  
   
                   IDTSComponentMetaData100 srcComponent = pipeline.ComponentMetaDataCollection.New();  
                   srcComponent.ComponentClassID = "DTSAdapter.OleDbSource";  
                   srcComponent.ValidateExternalMetadata = true;  
                   IDTSDesigntimeComponent100 srcDesignTimeComponent = srcComponent.Instantiate();  
                   srcDesignTimeComponent.ProvideComponentProperties();  
                   srcComponent.Name = "OleDb Source";  
   
                   srcDesignTimeComponent.SetComponentProperty("AccessMode", 0);  
                   srcDesignTimeComponent.SetComponentProperty("OpenRowset", "XXXXXXXX");  
   
                   // Set the connection manager  
                   srcComponent.RuntimeConnectionCollection[0].ConnectionManager = DtsConvert.GetExtendedInterface(connectionSource);  
                   srcComponent.RuntimeConnectionCollection[0].ConnectionManagerID = connectionSource.ID;  
   
                   // Retrieve the column metadata  
                   srcDesignTimeComponent.AcquireConnections(null);  
                   srcDesignTimeComponent.ReinitializeMetaData();  
                   srcDesignTimeComponent.ReleaseConnections();  
   
                   ConnectionManager connectionDest = package.Connections.Add("SQLPDW");  
                   connectionDest.Name = "SQL Server Destination";  
                   connectionDest.ConnectionString = @"Data Source=127.0.0.1,17001;Initial Catalog=SomeDB;User ID=sa;Password=XXXXXXXX;";  
   
                   IDTSComponentMetaData100 destComponent = pipeline.ComponentMetaDataCollection.New();  
                   destComponent.ComponentClassID = typeof(Microsoft.SqlServer.Dts.Pipeline.SQLPDWDestinationAdapter).AssemblyQualifiedName;  
                   IDTSDesigntimeComponent100 destDesignTimeComponent = destComponent.Instantiate();  
                   destDesignTimeComponent.ProvideComponentProperties();  
   
                   destComponent.Name = "ADO Destination";  
                   destDesignTimeComponent.SetComponentProperty("Mode", "Append");  
                   destDesignTimeComponent.SetComponentProperty("FinalTable", "XXXXXXXX");  
   
                   // set connection  
                   destComponent.RuntimeConnectionCollection[0].ConnectionManager = DtsConvert.GetExtendedInterface(connectionDest);  
                   destComponent.RuntimeConnectionCollection[0].ConnectionManagerID = connectionDest.ID;  
   
                   destDesignTimeComponent.AcquireConnections(null);  
   
                   // get metadata  
                   destDesignTimeComponent.ReinitializeMetaData();  
                   destDesignTimeComponent.ReleaseConnections();  
   
                   //Connect Source and Destination  
                   IDTSPath100 path = pipeline.PathCollection.New();  
                   path.AttachPathAndPropagateNotifications(srcComponent.OutputCollection[0], destComponent.InputCollection[0]);  
   
                   // Configure the destination  
                   IDTSInput100 destInput = destComponent.InputCollection[0];  
                   IDTSVirtualInput100 destVirInput = destInput.GetVirtualInput();  
                   IDTSInputColumnCollection100 destInputCols = destInput.InputColumnCollection;  
                   IDTSExternalMetadataColumnCollection100 destExtCols = destInput.ExternalMetadataColumnCollection;  
                   IDTSOutputColumnCollection100 sourceColumns = srcComponent.OutputCollection[0].OutputColumnCollection;  
   
                   // The OLEDB destination requires you to hook up the external columns  
                   foreach (IDTSOutputColumn100 outputCol in sourceColumns)  
                   {  
                       // Get the external column id  
                       IDTSExternalMetadataColumn100 extCol = (IDTSExternalMetadataColumn100)destExtCols[outputCol.Name];  
                       if (extCol != null)  
                       {  
                           // Create an input column from an output col of previous component.  
                           destVirInput.SetUsageType(outputCol.ID, DTSUsageType.UT_READONLY);  
                           IDTSInputColumn100 inputCol = destInputCols.GetInputColumnByLineageID(outputCol.ID);  
                           if (inputCol != null)  
                           {  
                               // map the input column with an external metadata column  
                               destDesignTimeComponent.MapInputColumn(destInput.ID, inputCol.ID, extCol.ID);  
                           }  
                       }  
                   }  
   
                   string pkg = @"D:\Test\GenPackage.dtsx";  
                   Microsoft.SqlServer.Dts.Runtime.Application app = new Microsoft.SqlServer.Dts.Runtime.Application();  
                   app.SaveToXml(pkg, package, null);  
   
                   // Now execute the package after creating it.  
                   package.Execute();  
               }  
               catch (COMException ex)  
               {  
                   string symbolicName = GetSymbolicName(ex.ErrorCode);  
                   Console.WriteLine("Symbolic Name: {0}", symbolicName);  
                   string zz = symbolicName;  
               }  
   
               Dts.TaskResult = (int)ScriptResults.Success;  
           }  
   
           #region ScriptResults declaration  
           /// <summary>  
           /// This enum provides a convenient shorthand within the scope of this class for setting the  
           /// result of the script.  
           ///   
           /// This code was generated automatically.  
           /// </summary>  
           enum ScriptResults  
           {  
               Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,  
               Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure  
           };  
           #endregion  
   
        }  
   }  
   

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