将Excel文件数据库导入SQL Server的三种方案

将Excel文件数据库导入SQL Server的三种方案//方案一： 通过OleDB方式获取Excel文件的数据，然后通过DataSet中转到SQL Server

openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "Excel files(*.xls)|*.xls";

if(openFileDialog.ShowDialog()==DialogResult.OK)
{
    FileInfo fileInfo = new FileInfo(openFileDialog.FileName);
    string filePath = fileInfo.FullName;
    string connExcel = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties=Excel 8.0";
   
    try
    {
        OleDbConnection oleDbConnection = new OleDbConnection(connExcel);
        oleDbConnection.Open();
       
        //获取excel表
        DataTable dataTable = oleDbConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);

        //获取sheet名，其中[0][1]...[N]: 按名称排列的表单元素
        string tableName = dataTable.Rows[0][2].ToString().Trim();
        tableName = "[" + tableName.Replace("''","") + "]";

        //利用SQL语句从Excel文件里获取数据
        //string query = "SELECT classDate,classPlace,classTeacher,classTitle,classID FROM " + tableName;
        string query = "SELECT 日期,开课城市,讲师,课程名称,持续时间 FROM " + tableName;
        dataSet = new DataSet();

        //OleDbCommand oleCommand = new OleDbCommand(query, oleDbConnection);
        //OleDbDataAdapter oleAdapter = new OleDbDataAdapter(oleCommand);
        OleDbDataAdapter oleAdapter = new OleDbDataAdapter(query,connExcel);
       
        oleAdapter.Fill(dataSet,"gch_Class_Info");

        //dataGrid1.DataSource = dataSet;
        //dataGrid1.DataMember = tableName;
        dataGrid1.SetDataBinding(dataSet,"gch_Class_Info");

        //从excel文件获得数据后，插入记录到SQL Server的数据表
        DataTable dataTable1 = new DataTable();
       
        SqlDataAdapter sqlDA1 = new SqlDataAdapter(@"SELECT classID, classDate,
classPlace, classTeacher, classTitle, durativeDate FROM gch_Class_Info",sqlConnection1);
    &

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