将SQL表下载到Excel C＃的最简单方法

Question

将sql表作为按钮下载到Excel的最简单方法是什么？只需从tableA中选择*，包含所有数据。

我也想使用这种格式......

SqlConnection sqlCon2 = new SqlConnection("REMOVED");
SqlCommand sqlCmd2 = new SqlCommand();
sqlCmd2.CommandText = "SELECT QtyOnHand FROM Products.Products WHERE PartNumber like '" + textBox1.Text + "'";
sqlCmd2.Connection = sqlCon2;

sqlCon2.Open();

//Download Excel Code

sqlCon2.Close();

谢谢，我很感激：）

Answer 1

在SSMS中执行您的查询，选择所有结果，右键单击并将结果另存为... ，这样您就可以将结果保存为文件。

Answer 2

正如评论所说，只输出一个以逗号分隔的文件：

SqlConnection sqlCon2 = new SqlConnection("REMOVED");
SqlCommand sqlCmd2 = new SqlCommand();
sqlCmd2.CommandText = "SELECT QtyOnHand FROM Products.Products WHERE PartNumber like '" + textBox1.Text + "'";
sqlCmd2.Connection = sqlCon2;


sqlCon2.Open();

 using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"excelfile.csv"))
 {
    SqlDataReader reader = command.ExecuteReader();

    while (reader.Read())
    {
       file.WriteLine(reader[0]);
    }

    reader.Close();
 }

sqlCon2.Close();