c# - 在 Excel 上执行多个更新命令

Question

我有一个 Excel 文件，我想更新工作表中的多行。所以我写了这段代码:

OleDbConnection cn = new OleDbConnection("Provider = Microsoft.Jet.OLEDB.4.0; Data Source = " + serverPath + ";Extended Properties = Excel 8.0;");
        try
        {

            strUpd = "";
            strUpd += "update [Data14City$] set  B_1_1 = 5 ,B_1_2 = 26 ,B_1_3 = 44 ,B_1_4 = 8  where id = 1 ";
            strUpd += " update [Data14City$] set  B_1_1 = 0 ,B_1_2 = 8 ,B_1_3 = 17 ,B_1_4 = 0  where id = 2";
            cn.Open();
            OleDbCommand cmdInsert = new OleDbCommand(strUpd, cn);
            cmdInsert.ExecuteNonQuery();
            cn.Close();
        }
        catch
        {
        }

我得到了这个错误:

Syntax error (missing operator) in query expression 'id = 1 update [Data14City$] set B_1_1 = 0 ,B_1_2 = 8 ,B_1_3 = 17 ,B_1_4 = 0 where id = 2'.

当我将 ; 添加到这一行时:

strUpd += "update [Data14City$] set  B_1_1 = 5 ,B_1_2 = 26 ,B_1_3 = 44 ,B_1_4 = 8  where id = 1;";

我遇到了这个错误:

Characters found after end of SQL statement.

如何在 Excel 中执行多条语句？

谢谢

Answer 1

你真的不需要像那样堆积你的更新(事实上，正如上面所指出的，你不能)。单独执行它们不会花费更长的时间。这是我一直在使用的代码，它工作正常(实际上我有一个循环，但如果你不能循环你的更新，它也会工作得同样好)。

cn.Open();

using (OleDbCommand cmd = cn.CreateCommand())
{
    cmd.CommandText = "update [Data14City$] set  B_1_1 = 5 ,B_1_2 = 26 ,B_1_3 = 44 ,B_1_4 = 8  where id = 1";
    cmd.ExecuteNonQuery();
    cmd.CommandText = "update [Data14City$] set  B_1_1 = 0 ,B_1_2 = 8 ,B_1_3 = 17 ,B_1_4 = 0  where id = 2";
    cmd.ExecuteNonQuery();

    // ... and so on
}

cn.Close();