本文整理汇总了VB.NET中System.Data.SqlClient.SqlBulkCopyOptions枚举的典型用法代码示例。如果您正苦于以下问题:VB.NET SqlBulkCopyOptions枚举的具体用法?VB.NET SqlBulkCopyOptions怎么用?VB.NET SqlBulkCopyOptions使用的例子?那么恭喜您, 这里精选的枚举代码示例或许可以为您提供帮助。
在下文中一共展示了SqlBulkCopyOptions枚举的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,您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。
示例1: Module1
' 导入命名空间
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.BulkCopyDemoMatchingColumns;", _
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
' Create the SqlBulkCopy object using a connection string
' and the KeepIdentity option.
' In the real world you would not use SqlBulkCopy to move
' data from one table to the other in the same database.
Using bulkCopy As SqlBulkCopy = _
New SqlBulkCopy(connectionString, SqlBulkCopyOptions.KeepIdentity)
bulkCopy.DestinationTableName = "dbo.BulkCopyDemoMatchingColumns"
Try
' Write from the source to the destination.
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
开发者ID:VB.NET开发者,项目名称:System.Data.SqlClient,代码行数:69,代码来源:SqlBulkCopyOptions
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