錯誤在C＃LOAD DATA INFILE查詢

我有下面的代碼的問題： -錯誤在C＃LOAD DATA INFILE查詢

private void btnUpload_Click(object sender, EventArgs e) 
    { 

     string nm = txtFilename.Text; 
     string qry = "LOAD DATA INFILE 'D:\\HHTFiles\\" + nm + "' INTO TABLE `table1`.`location`FIELDS TERMINATED BY '-->'LINES TERMINATED BY '\r\n'(Barcode,BinLoc);"; 
     cmd = new OdbcCommand(qry, con); 
     int i = cmd.ExecuteNonQuery(); 
     if (i > 0) 
     { 
      MessageBox.Show(" File loaded successfully..."); 
     } 


    } 

private void btnBrowse_Click(object sender, EventArgs e) 
    { 
     OpenFileDialog openfiledailog1 = new OpenFileDialog(); 
     openfiledailog1.InitialDirectory = "D:\\HHTFiles\\"; 
     openfiledailog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*"; 
     openfiledailog1.FilterIndex = 2; 
     openfiledailog1.RestoreDirectory = true; 

     if (openfiledailog1.ShowDialog() == DialogResult.OK) 
     { 
      try 
      { 
       if ((openfiledailog1.OpenFile()) != null) 
       { 

        txtFilename.Text = openfiledailog1.SafeFileName.ToString(); 

       } 
      } 
      catch (Exception ex) 
      { 
       MessageBox.Show("Error: Could not read file from disk. Original error: "  + ex.Message); 
      } 
     } 
    }

它運行正常，如果我給完整的文件路徑在我的查詢，如： - 字符串QRY =「 LOAD DATA INFILE'D：\ HHTFiles \ ABC.txt'INTO TABLE table1。location FIELDS TERMINATED BY' - >'LINES TERMINATED BY'\ r \ n'（Barcode，BinLoc）;「; 但是，當文件路徑傳遞給String變量時，它會引發錯誤。

錯誤： - ERROR [HY000] [MySQL的] [ODBC 5.1驅動]的[mysqld-48年5月1日社區]文件 'd：HHTFilesABC.txt' 未找到（ERRCODE：2）

來源

2012-07-25 RookieCoder

嘗試Path.Combine

Path.Combine("D:\\HHTFiles\\", nm);

而且爲了使用StringBuilder來構建查詢

StringBuilder stringBuilder = new StringBuilder(); 
stringBuilder.Append("LOAD DATA INFILE "); 
stringBuilder.Append(Path.Combine("D:\\HHTFiles\\", nm)); 
stringBuilder.Append(" INTO TABLE table1.location"); 
stringBuilder.Append(" FIELDS TERMINATED BY '-->'"); 
stringBuilder.Append(" LINES TERMINATED BY (");    
stringBuilder.Append(Barcode.BinLoc); 
stringBuilder.Append(")"); 

string qry = stringBuilder.ToString();

來源

2012-07-25 12:04:02

感謝您的快速回復。我試過你的代碼，但我仍然得到了以前的錯誤。錯誤[HY000] [MySQL] [ODBC 5.1驅動程序] [mysqld-5.1.48-community]找不到文件'D：HHTFilesABC.txt'（Errcode：2） – RookieCoder 2012-07-25 12:26:19

高興地回覆你，驗證D：HHTFiles/ABC。 txt存在路徑 – 2012-07-25 12:30:50

是的，ABC.txt文件存在於指定的路徑中。我甚至在上面的代碼段上應用了斷點。它顯示qry =「LOAD DATA INFILE'D：\\ HHTFiles \\ ABC.txt'INTO TABLE 'table1'.'location'FIELDS TERMINATED BY' - >'LINES TERMINATED BY'\ r \ n'（Barcode，BinLoc）;「。如果我在Mysql Editor上運行這個查詢，它運行正常並且1行受到影響。但相同的查詢不在C＃中工作。我很困惑... – RookieCoder 2012-07-26 05:56:04

@Aghilas它得到解決:)雖然我不知道爲什麼，我在第一時間得到錯誤。 Anway，我用'/'替換了'\'，並且運行良好。

 string nm = txtFilename.Text; 
     StringBuilder stringBuilder = new StringBuilder(); 
     stringBuilder.Append("LOAD DATA INFILE "); 
     stringBuilder.Append(Path.Combine("'D:/HHTFiles/", nm)); 
     stringBuilder.Append("' INTO TABLE `table1`.`location`FIELDS TERMINATED BY '-->'LINES TERMINATED BY '\r\n'(Barcode,BinLoc);");

來源

2012-07-26 06:16:27 RookieCoder

錯誤在C＃LOAD DATA INFILE查詢

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