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MySQL load NULL values from CSV data
...iable ends up containing an empty string:
LOAD DATA INFILE '/tmp/testdata.txt'
INTO TABLE moo
FIELDS TERMINATED BY ","
LINES TERMINATED BY "\n"
(one, two, three, @vfour, five)
SET four = NULLIF(@vfour,'')
;
If they're all possibly empty, then you'd read them all into variables and have multiple S...
How to get the current working directory in Java?
...lt().getPath(".");
And this will give you the path to a file called "Foo.txt" in the working directory:
Path path = FileSystems.getDefault().getPath("Foo.txt");
Edit :
To obtain an absolute path of current directory:
Path path = FileSystems.getDefault().getPath(".").toAbsolutePath();
* Updat...
How do I find which program is using port 80 in Windows? [duplicate]
...coming connections.
You can also run netstat -anb >%USERPROFILE%\ports.txt followed by start %USERPROFILE%\ports.txt to open the port and process list in a text editor, where you can search for the information you want.
You can also use PowerShell to parse netstat output and present it in a bet...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...。这些代码也会被编译一个函数功能块(当然并不是一个完整的函数)。它实际上变成了一个怎么结束函数执行的代码块。代码形式如下：
// execute handler code
return addressWhereToContinueAfterCatch;
OS得到跳转地址后，它会重建异常发生...
Creating an empty file in C#
...TF8 encoding (or unicode or something else): <File.WriteAllText("c:\del.txt", String.Empty, System.Text.Encoding.UTF8);>
– Fil
Mar 8 '17 at 14:54
1
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No module named pkg_resources
...v server and am hitting this error when I run pip install -r requirements.txt :
34 Answers
...
Given a URL to a text file, what is the simplest way to read the contents of the text file?
...o read line-by-line. You can get the whole thing like this:
import urllib
txt = urllib.urlopen(target_url).read()
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How do I get the file name from a String containing the Absolute file path?
...s in Apache Commons IO :
String name1 = FilenameUtils.getName("/ab/cd/xyz.txt");
String name2 = FilenameUtils.getName("c:\\ab\\cd\\xyz.txt");
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What is the difference between __dirname and ./ in node.js?
.../files/config.json
{
"hello": "world"
}
/home/user/dir/files/somefile.txt
text file
/home/user/dir/dir.js
var fs = require('fs');
console.log(require('./files/config.json'));
console.log(fs.readFileSync('./files/somefile.txt', 'utf8'));
If I cd into /home/user/dir and run node dir.js I w...
Loop through all the files with a specific extension
...
Loop through all files ending with: .img, .bin, .txt suffix, and print the file name:
for i in *.img *.bin *.txt;
do
echo "$i"
done
Or in a recursive manner (find also in all subdirectories):
for i in `find . -type f -name "*.img" -o -name "*.bin" -o -name "*.txt"`;
d...