本文整理汇总了C#中System.Data.SqlClient.SqlBulkCopyColumnMapping.SourceColumn属性的典型用法代码示例。如果您正苦于以下问题：C# SqlBulkCopyColumnMapping.SourceColumn属性的具体用法？C# SqlBulkCopyColumnMapping.SourceColumn怎么用？C# SqlBulkCopyColumnMapping.SourceColumn使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.Data.SqlClient.SqlBulkCopyColumnMapping的用法示例。
在下文中一共展示了SqlBulkCopyColumnMapping.SourceColumn属性的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
//引入命名空间
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 source and destination.
SqlBulkCopyColumnMapping mapID = new SqlBulkCopyColumnMapping();
mapID.SourceColumn = "ProductID";
mapID.DestinationColumn = "ProdID";
bulkCopy.ColumnMappings.Add(mapID);
SqlBulkCopyColumnMapping mapName = new SqlBulkCopyColumnMapping();
mapName.SourceColumn = "Name";
mapName.DestinationColumn = "ProdName";
bulkCopy.ColumnMappings.Add(mapName);
SqlBulkCopyColumnMapping mapNumber = new SqlBulkCopyColumnMapping();
mapNumber.SourceColumn = "ProductNumber";
mapNumber.DestinationColumn = "ProdNum";
bulkCopy.ColumnMappings.Add(mapNumber);
// 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;";
}
}