在Visual Basic (VB) 中将本地Excel文件导入SQL数据库可以通过多种方式实现,以下是使用ADO.NET进行操作的基本步骤:
以下是一个简单的VB.NET示例代码,展示如何使用ADO.NET将Excel文件中的数据导入到SQL Server数据库中:
Imports System.Data.OleDb
Imports System.Data.SqlClient
Module Module1
Sub Main()
Dim excelConnectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\path\to\your\file.xlsx;Extended Properties=""Excel 12.0 Xml;HDR=YES;"";"
Dim sqlConnectionString As String = "Data Source=your_server;Initial Catalog=your_database;Integrated Security=True"
Using excelConnection As New OleDbConnection(excelConnectionString)
excelConnection.Open()
Dim sqlAdapter As New OleDbDataAdapter("SELECT * FROM [Sheet1$]", excelConnection)
Dim dataTable As New DataTable()
sqlAdapter.Fill(dataTable)
Using sqlConnection As New SqlConnection(sqlConnectionString)
sqlConnection.Open()
Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(sqlConnection)
bulkCopy.DestinationTableName = "YourTable"
For Each column As DataColumn In dataTable.Columns
bulkCopy.ColumnMappings.Add(column.ColumnName, column.ColumnName)
Next
bulkCopy.WriteToServer(dataTable)
End Using
End Using
End Using
End Sub
End Module
请注意,上述代码示例假设你已经安装了Microsoft Access Database Engine,这是读取Excel文件所必需的。如果没有安装,可以从Microsoft官网下载并安装。此外,确保你的SQL Server数据库已经创建了相应的表,并且表结构与Excel文件中的数据列相匹配。
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