Question

我正在尝试使用C＃从MySql数据库中获取数据并将该数据导出到Excel中。出于某种原因，我只获得第一行数据。我不确定是什么问题。以下是我的代码：

public void MySqlConnectionHandler(string SQL_QUERY)
    {
        try
        {
            ConnectionString = " SERVER = some_ip_address;"
                               + "DATABASE = database ;"
                               + "UID=user;"
                               + "PASSWORD=password";
            connection = new MySqlConnection(ConnectionString);
            MySqlDataAdapter dataAdapter = new MySqlDataAdapter();
            dataAdapter.SelectCommand = new MySqlCommand(SQL_QUERY,connection);
            DataTable dbdataset = new DataTable();
            dataAdapter.Fill(dbdataset);
            XLWorkbook wb = new XLWorkbook();
            wb.Worksheets.Add(dbdataset, "myworktable");
            wb.SaveAs("myworktable.xlsx");
            MessageBox.Show("Connected");

        }
        catch (MySqlException ex)
        {
            MessageBox.Show(ex.Message, "MySQL Query Failure");

        }
    }

 static void Main(string[] args)
    {
        AggAutomation agg = new AggAutomation();
        agg.MySqlConnectionHandler("SELECT * FROM data_base;");

    }

Answer 1

解决。这是一个愚蠢的错误。我正在阅读的数据表实际上只有一个数据点

XLWorkbook仅保存SQL查询中的第一行数据

1 个答案: