SqlBulkCopyColumnMappingCollection.Add メソッド

ソース:

System.Data.SqlClient.notsupported.cs

public:
 System::Data::SqlClient::SqlBulkCopyColumnMapping ^ Add(System::Data::SqlClient::SqlBulkCopyColumnMapping ^ bulkCopyColumnMapping);

public System.Data.SqlClient.SqlBulkCopyColumnMapping Add(System.Data.SqlClient.SqlBulkCopyColumnMapping bulkCopyColumnMapping);

member this.Add : System.Data.SqlClient.SqlBulkCopyColumnMapping -> System.Data.SqlClient.SqlBulkCopyColumnMapping

Public Function Add (bulkCopyColumnMapping As SqlBulkCopyColumnMapping) As SqlBulkCopyColumnMapping

パラメーター

返品

SqlBulkCopyColumnMapping オブジェクト。

例

次の例では、AdventureWorks サンプル データベースのソース テーブルから、同じデータベース内のコピー先テーブルにデータを一括コピーします。 変換先の列数はソース内の列数と一致しますが、列名と序数の位置は一致しません。 SqlBulkCopyColumnMapping オブジェクトは、一括コピーの列マップを作成するために使用されます。

using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = GetConnectionString();
        // Open a sourceConnection to the AdventureWorks database.
        using (SqlConnection sourceConnection =
                   new SqlConnection(connectionString))
        {
            sourceConnection.Open();

            // Perform an initial count on the destination table.
            SqlCommand commandRowCount = new SqlCommand(
                "SELECT COUNT(*) FROM " +
                "dbo.BulkCopyDemoDifferentColumns;",
                sourceConnection);
            long countStart = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Starting row count = {0}", countStart);

            // Get data from the source table as a SqlDataReader.
            SqlCommand commandSourceData = new SqlCommand(
                "SELECT ProductID, Name, " +
                "ProductNumber " +
                "FROM Production.Product;", sourceConnection);
            SqlDataReader reader =
                commandSourceData.ExecuteReader();

            // Set up the bulk copy object.
            using (SqlBulkCopy bulkCopy =
                       new SqlBulkCopy(connectionString))
            {
                bulkCopy.DestinationTableName =
                    "dbo.BulkCopyDemoDifferentColumns";

                // Set up the column mappings by name.
                SqlBulkCopyColumnMapping mapID =
                    new SqlBulkCopyColumnMapping("ProductID", "ProdID");
                bulkCopy.ColumnMappings.Add(mapID);

                SqlBulkCopyColumnMapping mapName =
                    new SqlBulkCopyColumnMapping("Name", "ProdName");
                bulkCopy.ColumnMappings.Add(mapName);

                SqlBulkCopyColumnMapping mapMumber =
                    new SqlBulkCopyColumnMapping("ProductNumber", "ProdNum");
                bulkCopy.ColumnMappings.Add(mapMumber);

                // Write from the source to the destination.
                try
                {
                    bulkCopy.WriteToServer(reader);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
                finally
                {
                    // Close the SqlDataReader. The SqlBulkCopy
                    // object is automatically closed at the end
                    // of the using block.
                    reader.Close();
                }
            }

            // Perform a final count on the destination
            // table to see how many rows were added.
            long countEnd = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Ending row count = {0}", countEnd);
            Console.WriteLine("{0} rows were added.", countEnd - countStart);
            Console.WriteLine("Press Enter to finish.");
            Console.ReadLine();
        }
    }

    private static string GetConnectionString()
        // To avoid storing the sourceConnection string in your code,
        // you can retrieve it from a configuration file.
    {
        return "Data Source=(local); " +
            " Integrated Security=true;" +
            "Initial Catalog=AdventureWorks;";
    }
}

Imports System.Data.SqlClient

Module Module1
    Sub Main()
        Dim connectionString As String = GetConnectionString()

        ' Open a connection to the AdventureWorks database.
        Using sourceConnection As SqlConnection = _
           New SqlConnection(connectionString)
            sourceConnection.Open()

            ' Perform an initial count on the destination table.
            Dim commandRowCount As New SqlCommand( _
            "SELECT COUNT(*) FROM dbo.BulkCopyDemoDifferentColumns;", _
                sourceConnection)
            Dim countStart As Long = _
               System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Starting row count = {0}", countStart)

            ' Get data from the source table as a SqlDataReader.
            Dim commandSourceData As SqlCommand = New SqlCommand( _
               "SELECT ProductID, Name, ProductNumber " & _
               "FROM Production.Product;", sourceConnection)
            Dim reader As SqlDataReader = commandSourceData.ExecuteReader

            ' Set up the bulk copy object.
            Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(connectionString)
                bulkCopy.DestinationTableName = _
                "dbo.BulkCopyDemoDifferentColumns"

                ' Set up the column mappings by name.
                Dim mapID As New _
                  SqlBulkCopyColumnMapping("ProductID", "ProdID")
                bulkCopy.ColumnMappings.Add(mapID)

                Dim mapName As New _
                 SqlBulkCopyColumnMapping("Name", "ProdName")
                bulkCopy.ColumnMappings.Add(mapName)

                Dim mapMumber As New _
                 SqlBulkCopyColumnMapping("ProductNumber", "ProdNum")
                bulkCopy.ColumnMappings.Add(mapMumber)

                ' Write from the source to the destination.
                Try
                    bulkCopy.WriteToServer(reader)

                Catch ex As Exception
                    Console.WriteLine(ex.Message)

                Finally
                    ' Close the SqlDataReader. The SqlBulkCopy
                    ' object is automatically closed at the end
                    ' of the Using block.
                    reader.Close()
                End Try
            End Using

            ' Perform a final count on the destination table
            ' to see how many rows were added.
            Dim countEnd As Long = _
                System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Ending row count = {0}", countEnd)
            Console.WriteLine("{0} rows were added.", countEnd - countStart)

            Console.WriteLine("Press Enter to finish.")
            Console.ReadLine()
        End Using
    End Sub

    Private Function GetConnectionString() As String
        ' To avoid storing the sourceConnection string in your code, 
        ' you can retrieve it from a configuration file. 
        Return "Data Source=(local);" & _
            "Integrated Security=true;" & _
            "Initial Catalog=AdventureWorks;"
    End Function
End Module

こちらもご覧ください

• SQL Server での一括コピー操作
• ADO.NET の概要

ソース:

System.Data.SqlClient.notsupported.cs

public:
 System::Data::SqlClient::SqlBulkCopyColumnMapping ^ Add(int sourceColumnIndex, int destinationColumnIndex);

public System.Data.SqlClient.SqlBulkCopyColumnMapping Add(int sourceColumnIndex, int destinationColumnIndex);

member this.Add : int * int -> System.Data.SqlClient.SqlBulkCopyColumnMapping

Public Function Add (sourceColumnIndex As Integer, destinationColumnIndex As Integer) As SqlBulkCopyColumnMapping

パラメーター

返品

列マッピング。

例

次の例では、AdventureWorks サンプル データベースのソース テーブルから、同じデータベース内のコピー先テーブルにデータを一括コピーします。 変換先の列数はソース内の列数と一致しますが、列名と序数の位置は一致しません。 SqlBulkCopyColumnMapping オブジェクトは、ソース列とコピー先列の序数位置を使用して、一括コピーの列マップを作成するために使用されます。

using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = GetConnectionString();
        // Open a sourceConnection to the AdventureWorks database.
        using (SqlConnection sourceConnection =
                   new SqlConnection(connectionString))
        {
            sourceConnection.Open();

            // Perform an initial count on the destination table.
            SqlCommand commandRowCount = new SqlCommand(
                "SELECT COUNT(*) FROM " +
                "dbo.BulkCopyDemoDifferentColumns;",
                sourceConnection);
            long countStart = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Starting row count = {0}", countStart);

            // Get data from the source table as a SqlDataReader.
            SqlCommand commandSourceData = new SqlCommand(
                "SELECT ProductID, Name, " +
                "ProductNumber " +
                "FROM Production.Product;", sourceConnection);
            SqlDataReader reader =
                commandSourceData.ExecuteReader();

            // Set up the bulk copy object.
            using (SqlBulkCopy bulkCopy =
                       new SqlBulkCopy(connectionString))
            {
                bulkCopy.DestinationTableName =
                    "dbo.BulkCopyDemoDifferentColumns";

                // The column order in the source doesn't match the order
                // in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add(0, 0);
                bulkCopy.ColumnMappings.Add(1, 2);
                bulkCopy.ColumnMappings.Add(2, 1);

                // Write from the source to the destination.
                try
                {
                    bulkCopy.WriteToServer(reader);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
                finally
                {
                    // Close the SqlDataReader. The SqlBulkCopy
                    // object is automatically closed at the end
                    // of the using block.
                    reader.Close();
                }
            }

            // Perform a final count on the destination
            // table to see how many rows were added.
            long countEnd = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Ending row count = {0}", countEnd);
            Console.WriteLine("{0} rows were added.", countEnd - countStart);
            Console.WriteLine("Press Enter to finish.");
            Console.ReadLine();
        }
    }

    private static string GetConnectionString()
        // To avoid storing the sourceConnection string in your code,
        // you can retrieve it from a configuration file.
    {
        return "Data Source=(local); " +
            " Integrated Security=true;" +
            "Initial Catalog=AdventureWorks;";
    }
}

Imports System.Data.SqlClient

Module Module1
    Sub Main()
        Dim connectionString As String = GetConnectionString()

        ' Open a connection to the AdventureWorks database.
        Using sourceConnection As SqlConnection = _
           New SqlConnection(connectionString)
            sourceConnection.Open()

            ' Perform an initial count on the destination table.
            Dim commandRowCount As New SqlCommand( _
            "SELECT COUNT(*) FROM dbo.BulkCopyDemoDifferentColumns;", _
                sourceConnection)
            Dim countStart As Long = _
               System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Starting row count = {0}", countStart)

            ' Get data from the source table as a SqlDataReader.
            Dim commandSourceData As SqlCommand = New SqlCommand( _
               "SELECT ProductID, Name, ProductNumber " & _
               "FROM Production.Product;", sourceConnection)
            Dim reader As SqlDataReader = commandSourceData.ExecuteReader

            ' Set up the bulk copy object.
            Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(connectionString)
                bulkCopy.DestinationTableName = _
                "dbo.BulkCopyDemoDifferentColumns"

                ' The column order in the source doesn't match the order 
                ' in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add(0, 0)
                bulkCopy.ColumnMappings.Add(1, 2)
                bulkCopy.ColumnMappings.Add(2, 1)

                ' Write from the source to the destination.
                Try
                    bulkCopy.WriteToServer(reader)

                Catch ex As Exception
                    Console.WriteLine(ex.Message)

                Finally
                    ' Close the SqlDataReader. The SqlBulkCopy
                    ' object is automatically closed at the end
                    ' of the Using block.
                    reader.Close()
                End Try
            End Using

            ' Perform a final count on the destination table
            ' to see how many rows were added.
            Dim countEnd As Long = _
                System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Ending row count = {0}", countEnd)
            Console.WriteLine("{0} rows were added.", countEnd - countStart)

            Console.WriteLine("Press Enter to finish.")
            Console.ReadLine()
        End Using
    End Sub

    Private Function GetConnectionString() As String
        ' To avoid storing the sourceConnection string in your code, 
        ' you can retrieve it from a configuration file. 
        Return "Data Source=(local);" & _
            "Integrated Security=true;" & _
            "Initial Catalog=AdventureWorks;"
    End Function
End Module

注釈

コレクション内のマッピングは、すべての整数/整数ペア、すべての文字列/文字列ペア、すべての整数/文字列ペア、またはすべての文字列/整数ペアのいずれか、均一である必要があります。 既にコレクション内の他のマッピングとは異なるマッピングを追加しようとすると、 InvalidOperationException がスローされます。

こちらもご覧ください

• SQL Server での一括コピー操作
• ADO.NET の概要

ソース:

System.Data.SqlClient.notsupported.cs

public:
 System::Data::SqlClient::SqlBulkCopyColumnMapping ^ Add(int sourceColumnIndex, System::String ^ destinationColumn);

public System.Data.SqlClient.SqlBulkCopyColumnMapping Add(int sourceColumnIndex, string destinationColumn);

member this.Add : int * string -> System.Data.SqlClient.SqlBulkCopyColumnMapping

Public Function Add (sourceColumnIndex As Integer, destinationColumn As String) As SqlBulkCopyColumnMapping

パラメーター

返品

列マッピング。

例

次の例では、AdventureWorks サンプル データベースのソース テーブルから、同じデータベース内のコピー先テーブルにデータを一括コピーします。 変換先の列数はソース内の列数と一致しますが、列名と序数の位置は一致しません。 SqlBulkCopyColumnMapping オブジェクトは、一括コピーの列マップを作成するために使用されます。

using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = GetConnectionString();
        // Open a sourceConnection to the AdventureWorks database.
        using (SqlConnection sourceConnection =
                   new SqlConnection(connectionString))
        {
            sourceConnection.Open();

            // Perform an initial count on the destination table.
            SqlCommand commandRowCount = new SqlCommand(
                "SELECT COUNT(*) FROM " +
                "dbo.BulkCopyDemoDifferentColumns;",
                sourceConnection);
            long countStart = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Starting row count = {0}", countStart);

            // Get data from the source table as a SqlDataReader.
            SqlCommand commandSourceData = new SqlCommand(
                "SELECT ProductID, Name, " +
                "ProductNumber " +
                "FROM Production.Product;", sourceConnection);
            SqlDataReader reader =
                commandSourceData.ExecuteReader();

            // Set up the bulk copy object.
            using (SqlBulkCopy bulkCopy =
                       new SqlBulkCopy(connectionString))
            {
                bulkCopy.DestinationTableName =
                    "dbo.BulkCopyDemoDifferentColumns";

                // The column order in the source doesn't match the order
                // in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add(0, "ProdID");
                bulkCopy.ColumnMappings.Add(1, "ProdName");
                bulkCopy.ColumnMappings.Add(2, "ProdNum");

                // Write from the source to the destination.
                try
                {
                    bulkCopy.WriteToServer(reader);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
                finally
                {
                    // Close the SqlDataReader. The SqlBulkCopy
                    // object is automatically closed at the end
                    // of the using block.
                    reader.Close();
                }
            }

            // Perform a final count on the destination
            // table to see how many rows were added.
            long countEnd = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Ending row count = {0}", countEnd);
            Console.WriteLine("{0} rows were added.", countEnd - countStart);
            Console.WriteLine("Press Enter to finish.");
            Console.ReadLine();
        }
    }

    private static string GetConnectionString()
        // To avoid storing the sourceConnection string in your code,
        // you can retrieve it from a configuration file.
    {
        return "Data Source=(local); " +
            " Integrated Security=true;" +
            "Initial Catalog=AdventureWorks;";
    }
}

Imports System.Data.SqlClient

Module Module1
    Sub Main()
        Dim connectionString As String = GetConnectionString()

        ' Open a connection to the AdventureWorks database.
        Using sourceConnection As SqlConnection = _
           New SqlConnection(connectionString)
            sourceConnection.Open()

            ' Perform an initial count on the destination table.
            Dim commandRowCount As New SqlCommand( _
            "SELECT COUNT(*) FROM dbo.BulkCopyDemoDifferentColumns;", _
                sourceConnection)
            Dim countStart As Long = _
               System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Starting row count = {0}", countStart)

            ' Get data from the source table as a SqlDataReader.
            Dim commandSourceData As SqlCommand = New SqlCommand( _
               "SELECT ProductID, Name, ProductNumber " & _
               "FROM Production.Product;", sourceConnection)
            Dim reader As SqlDataReader = commandSourceData.ExecuteReader

            ' Set up the bulk copy object.
            Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(connectionString)
                bulkCopy.DestinationTableName = _
                "dbo.BulkCopyDemoDifferentColumns"

                ' The column order in the source doesn't match the order 
                ' in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add(0, "ProdID")
                bulkCopy.ColumnMappings.Add(1, "ProdName")
                bulkCopy.ColumnMappings.Add(2, "ProdNum")

                ' Write from the source to the destination.
                Try
                    bulkCopy.WriteToServer(reader)

                Catch ex As Exception
                    Console.WriteLine(ex.Message)

                Finally
                    ' Close the SqlDataReader. The SqlBulkCopy
                    ' object is automatically closed at the end
                    ' of the Using block.
                    reader.Close()
                End Try
            End Using

            ' Perform a final count on the destination table
            ' to see how many rows were added.
            Dim countEnd As Long = _
                System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Ending row count = {0}", countEnd)
            Console.WriteLine("{0} rows were added.", countEnd - countStart)

            Console.WriteLine("Press Enter to finish.")
            Console.ReadLine()
        End Using
    End Sub

    Private Function GetConnectionString() As String
        ' To avoid storing the sourceConnection string in your code, 
        ' you can retrieve it from a configuration file. 
        Return "Data Source=(local);" & _
            "Integrated Security=true;" & _
            "Initial Catalog=AdventureWorks;"
    End Function
End Module

注釈

コレクション内のマッピングは、すべての整数/整数ペア、すべての文字列/文字列ペア、すべての整数/文字列ペア、またはすべての文字列/整数ペアのいずれか、均一である必要があります。 既にコレクション内の他のマッピングとは異なるマッピングを追加しようとすると、 InvalidOperationException がスローされます。

こちらもご覧ください

• SQL Server での一括コピー操作
• ADO.NET の概要

ソース:

System.Data.SqlClient.notsupported.cs

public:
 System::Data::SqlClient::SqlBulkCopyColumnMapping ^ Add(System::String ^ sourceColumn, int destinationColumnIndex);

public System.Data.SqlClient.SqlBulkCopyColumnMapping Add(string sourceColumn, int destinationColumnIndex);

member this.Add : string * int -> System.Data.SqlClient.SqlBulkCopyColumnMapping

Public Function Add (sourceColumn As String, destinationColumnIndex As Integer) As SqlBulkCopyColumnMapping

パラメーター

返品

列マッピング。

例

次の例では、AdventureWorks サンプル データベースのソース テーブルから、同じデータベース内のコピー先テーブルにデータを一括コピーします。 変換先の列数はソース内の列数と一致しますが、列名と序数の位置は一致しません。 SqlBulkCopyColumnMapping オブジェクトは、一括コピーの列マップを作成するために使用されます。

using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = GetConnectionString();
        // Open a sourceConnection to the AdventureWorks database.
        using (SqlConnection sourceConnection =
                   new SqlConnection(connectionString))
        {
            sourceConnection.Open();

            // Perform an initial count on the destination table.
            SqlCommand commandRowCount = new SqlCommand(
                "SELECT COUNT(*) FROM " +
                "dbo.BulkCopyDemoDifferentColumns;",
                sourceConnection);
            long countStart = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Starting row count = {0}", countStart);

            // Get data from the source table as a SqlDataReader.
            SqlCommand commandSourceData = new SqlCommand(
                "SELECT ProductID, Name, " +
                "ProductNumber " +
                "FROM Production.Product;", sourceConnection);
            SqlDataReader reader =
                commandSourceData.ExecuteReader();

            // Set up the bulk copy object.
            using (SqlBulkCopy bulkCopy =
                       new SqlBulkCopy(connectionString))
            {
                bulkCopy.DestinationTableName =
                    "dbo.BulkCopyDemoDifferentColumns";

                // The column order in the source doesn't match the order
                // in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add("ProductID", 0);
                bulkCopy.ColumnMappings.Add("ProductNumber", 1);
                bulkCopy.ColumnMappings.Add("Name", 2);

                // Write from the source to the destination.
                try
                {
                    bulkCopy.WriteToServer(reader);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
                finally
                {
                    // Close the SqlDataReader. The SqlBulkCopy
                    // object is automatically closed at the end
                    // of the using block.
                    reader.Close();
                }
            }

            // Perform a final count on the destination
            // table to see how many rows were added.
            long countEnd = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Ending row count = {0}", countEnd);
            Console.WriteLine("{0} rows were added.", countEnd - countStart);
            Console.WriteLine("Press Enter to finish.");
            Console.ReadLine();
        }
    }

    private static string GetConnectionString()
        // To avoid storing the sourceConnection string in your code,
        // you can retrieve it from a configuration file.
    {
        return "Data Source=(local); " +
            " Integrated Security=true;" +
            "Initial Catalog=AdventureWorks;";
    }
}

Imports System.Data.SqlClient

Module Module1
    Sub Main()
        Dim connectionString As String = GetConnectionString()

        ' Open a connection to the AdventureWorks database.
        Using sourceConnection As SqlConnection = _
           New SqlConnection(connectionString)
            sourceConnection.Open()

            ' Perform an initial count on the destination table.
            Dim commandRowCount As New SqlCommand( _
            "SELECT COUNT(*) FROM dbo.BulkCopyDemoDifferentColumns;", _
                sourceConnection)
            Dim countStart As Long = _
               System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Starting row count = {0}", countStart)

            ' Get data from the source table as a SqlDataReader.
            Dim commandSourceData As SqlCommand = New SqlCommand( _
               "SELECT ProductID, Name, ProductNumber " & _
               "FROM Production.Product;", sourceConnection)
            Dim reader As SqlDataReader = commandSourceData.ExecuteReader

            ' Set up the bulk copy object.
            Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(connectionString)
                bulkCopy.DestinationTableName = _
                "dbo.BulkCopyDemoDifferentColumns"

                ' The column order in the source doesn't match the order 
                ' in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add("ProductID", 0)
                bulkCopy.ColumnMappings.Add("ProductNumber", 1)
                bulkCopy.ColumnMappings.Add("Name", 2)

                ' Write from the source to the destination.
                Try
                    bulkCopy.WriteToServer(reader)

                Catch ex As Exception
                    Console.WriteLine(ex.Message)

                Finally
                    ' Close the SqlDataReader. The SqlBulkCopy
                    ' object is automatically closed at the end
                    ' of the Using block.
                    reader.Close()
                End Try
            End Using

            ' Perform a final count on the destination table
            ' to see how many rows were added.
            Dim countEnd As Long = _
                System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Ending row count = {0}", countEnd)
            Console.WriteLine("{0} rows were added.", countEnd - countStart)

            Console.WriteLine("Press Enter to finish.")
            Console.ReadLine()
        End Using
    End Sub

    Private Function GetConnectionString() As String
        ' To avoid storing the sourceConnection string in your code, 
        ' you can retrieve it from a configuration file. 
        Return "Data Source=(local);" & _
            "Integrated Security=true;" & _
            "Initial Catalog=AdventureWorks;"
    End Function
End Module

注釈

コレクション内のマッピングは、すべての整数/整数ペア、すべての文字列/文字列ペア、すべての整数/文字列ペア、またはすべての文字列/整数ペアのいずれか、均一である必要があります。 既にコレクション内の他のマッピングとは異なるマッピングを追加しようとすると、 InvalidOperationException がスローされます。

こちらもご覧ください

• SQL Server での一括コピー操作
• ADO.NET の概要

ソース:

System.Data.SqlClient.notsupported.cs

public:
 System::Data::SqlClient::SqlBulkCopyColumnMapping ^ Add(System::String ^ sourceColumn, System::String ^ destinationColumn);

public System.Data.SqlClient.SqlBulkCopyColumnMapping Add(string sourceColumn, string destinationColumn);

member this.Add : string * string -> System.Data.SqlClient.SqlBulkCopyColumnMapping

Public Function Add (sourceColumn As String, destinationColumn As String) As SqlBulkCopyColumnMapping

パラメーター

返品

列マッピング。

例

次の例では、AdventureWorks サンプル データベースのソース テーブルから、同じデータベース内のコピー先テーブルにデータを一括コピーします。 変換先の列数はソース内の列数と一致しますが、列名と序数の位置は一致しません。 このコードでは、列名を指定して SqlBulkCopyColumnMapping オブジェクトを作成します。

using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = GetConnectionString();
        // Open a sourceConnection to the AdventureWorks database.
        using (SqlConnection sourceConnection =
                   new SqlConnection(connectionString))
        {
            sourceConnection.Open();

            // Perform an initial count on the destination table.
            SqlCommand commandRowCount = new SqlCommand(
                "SELECT COUNT(*) FROM " +
                "dbo.BulkCopyDemoDifferentColumns;",
                sourceConnection);
            long countStart = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Starting row count = {0}", countStart);

            // Get data from the source table as a SqlDataReader.
            SqlCommand commandSourceData = new SqlCommand(
                "SELECT ProductID, Name, " +
                "ProductNumber " +
                "FROM Production.Product;", sourceConnection);
            SqlDataReader reader =
                commandSourceData.ExecuteReader();

            // Set up the bulk copy object.
            using (SqlBulkCopy bulkCopy =
                       new SqlBulkCopy(connectionString))
            {
                bulkCopy.DestinationTableName =
                    "dbo.BulkCopyDemoDifferentColumns";

                // The column order in the source doesn't match the order
                // in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add("ProductID", "ProdID");
                bulkCopy.ColumnMappings.Add("Name", "ProdName");
                bulkCopy.ColumnMappings.Add("ProductNumber", "ProdNum");

                // Write from the source to the destination.
                try
                {
                    bulkCopy.WriteToServer(reader);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
                finally
                {
                    // Close the SqlDataReader. The SqlBulkCopy
                    // object is automatically closed at the end
                    // of the using block.
                    reader.Close();
                }
            }

            // Perform a final count on the destination
            // table to see how many rows were added.
            long countEnd = System.Convert.ToInt32(
                commandRowCount.ExecuteScalar());
            Console.WriteLine("Ending row count = {0}", countEnd);
            Console.WriteLine("{0} rows were added.", countEnd - countStart);
            Console.WriteLine("Press Enter to finish.");
            Console.ReadLine();
        }
    }

    private static string GetConnectionString()
        // To avoid storing the sourceConnection string in your code,
        // you can retrieve it from a configuration file.
    {
        return "Data Source=(local); " +
            " Integrated Security=true;" +
            "Initial Catalog=AdventureWorks;";
    }
}

Imports System.Data.SqlClient

Module Module1
    Sub Main()
        Dim connectionString As String = GetConnectionString()

        ' Open a connection to the AdventureWorks database.
        Using sourceConnection As SqlConnection = _
           New SqlConnection(connectionString)
            sourceConnection.Open()

            ' Perform an initial count on the destination table.
            Dim commandRowCount As New SqlCommand( _
            "SELECT COUNT(*) FROM dbo.BulkCopyDemoDifferentColumns;", _
                sourceConnection)
            Dim countStart As Long = _
               System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Starting row count = {0}", countStart)

            ' Get data from the source table as a SqlDataReader.
            Dim commandSourceData As SqlCommand = New SqlCommand( _
               "SELECT ProductID, Name, ProductNumber " & _
               "FROM Production.Product;", sourceConnection)
            Dim reader As SqlDataReader = commandSourceData.ExecuteReader

            ' Set up the bulk copy object.
            Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(connectionString)
                bulkCopy.DestinationTableName = _
                "dbo.BulkCopyDemoDifferentColumns"

                ' The column order in the source doesn't match the order 
                ' in the destination, so ColumnMappings must be defined.
                bulkCopy.ColumnMappings.Add("ProductID", "ProdID")
                bulkCopy.ColumnMappings.Add("Name", "ProdName")
                bulkCopy.ColumnMappings.Add("ProductNumber", "ProdNum")

                ' Write from the source to the destination.
                Try
                    bulkCopy.WriteToServer(reader)

                Catch ex As Exception
                    Console.WriteLine(ex.Message)

                Finally
                    ' Close the SqlDataReader. The SqlBulkCopy
                    ' object is automatically closed at the end
                    ' of the Using block.
                    reader.Close()
                End Try
            End Using

            ' Perform a final count on the destination table
            ' to see how many rows were added.
            Dim countEnd As Long = _
                System.Convert.ToInt32(commandRowCount.ExecuteScalar())
            Console.WriteLine("Ending row count = {0}", countEnd)
            Console.WriteLine("{0} rows were added.", countEnd - countStart)

            Console.WriteLine("Press Enter to finish.")
            Console.ReadLine()
        End Using
    End Sub

    Private Function GetConnectionString() As String
        ' To avoid storing the sourceConnection string in your code, 
        ' you can retrieve it from a configuration file. 
        Return "Data Source=(local);" & _
            "Integrated Security=true;" & _
            "Initial Catalog=AdventureWorks;"
    End Function
End Module

注釈

コレクション内のマッピングは、すべての整数/整数ペア、すべての文字列/文字列ペア、すべての整数/文字列ペア、またはすべての文字列/整数ペアのいずれか、均一である必要があります。 既にコレクション内の他のマッピングとは異なるマッピングを追加しようとすると、 InvalidOperationException がスローされます。

こちらもご覧ください

• SQL Server での一括コピー操作
• ADO.NET の概要