关于 mysql:Error in Load Data infile query in C#

Error in Load Data infile query in C#

以下代码有问题：-

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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 ‘\
\
‘(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);
}
}
}

如果我在查询中给出完整的文件路径，它会正常运行：-
string qry =”LOAD DATA INFILE ‘D:\\\\HHTFiles\\\\ ABC.txt’ INTO TABLE table1.locationFIELDS TERMINATED BY ‘–>’LINES TERMINATED BY ‘\\
\\
‘(条形码,BinLoc);”;
但是当文件路径在字符串变量中传递时会引发错误。

错误：-
错误 [HY000] [MySQL][ODBC 5.1 驱动程序][mysqld-5.1.48-community] 找不到文件 ‘D:HHTFilesABC.txt’ (Errcode: 2)

@Aghilas 它得到了解决:) 虽然我不确定为什么我首先会出错。 Anway，我只是将 ‘\\\\\\\\’ 替换为 ‘/’ 并且运行良好。

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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 ‘\
\
‘(Barcode,BinLoc);”);

尝试使用 Path.Combine

1	Path.Combine(“D:\\\\HHTFiles\”, nm);

并使用 StringBuilder 来构建您的查询

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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();

Error in Load Data infile query in C#

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