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How to select unique records by SQL
...ression (CTE) with ROW_NUMBER()
Consider the following sample TABLE with test data:
/** Create test table */
CREATE TEMPORARY TABLE dupes(word text, num int, id int);
/** Add test data with duplicates */
INSERT INTO dupes(word, num, id)
VALUES ('aaa', 100, 1)
,('bbb', 200, 2)
,('ccc'...
How do you diff a directory for only files of a specific type?
...ER += lib
FOLDER += Image
FOLDER += models
OPTIONS = Naur
patch:
rm test.patch
diff -$(OPTIONS) \
$(foreach element, $(SUFFIX) , -x '*.$(element)') \
$(foreach element, $(FOLDER) , -x '$(element)*') \
org/ new/ > test.patch
unpatch:
rm test.unpatch
diff -$(O...
How to know that a string starts/ends with a specific string in jQuery?
... the problem @nokturnal mentions: str.match(/^Hello/) But the form /regex/.test(str) is even better for this particular case, per stackoverflow.com/questions/10940137/…
– CrazyPyro
Sep 5 '13 at 3:59
...
Check that an email address is valid on iOS [duplicate]
... = stricterFilter ? stricterFilterString : laxString;
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:checkString];
}
Discussion on Lax vs. Strict - http://blog.logichigh.com/2010/09/02/validating-an-e-mail-addre...
Min/Max of dates in an array?
...
Code is tested with IE,FF,Chrome and works properly:
var dates=[];
dates.push(new Date("2011/06/25"))
dates.push(new Date("2011/06/26"))
dates.push(new Date("2011/06/27"))
dates.push(new Date("2011/06/28"))
var maxDate=new Date(Math...
Why (0-6) is -6 = False? [duplicate]
...ached as global objects sharing the same address with CPython, thus the is test passes.
This artifact is explained in detail in http://www.laurentluce.com/posts/python-integer-objects-implementation/, and we could check the current source code in http://hg.python.org/cpython/file/tip/Objects/longob...
Copy files without overwrite
...e filename+extension, without the path -- which is what you need to do the test in the target folder and specify the target filename. The point is that %F includes the path, and you don't want it there.
– Stu
Aug 30 '16 at 13:27
...
What is the worst gotcha in C# or .NET? [closed]
... nasty situations like this:
using System;
using System.Threading;
class Test
{
static void Main()
{
for (int i=0; i < 10; i++)
{
ThreadStart ts = delegate { Console.WriteLine(i); };
new Thread(ts).Start();
}
}
}
What will that print...
Why doesn't os.path.join() work in this case?
...lute rather than relative path.
os.path.join(os.path.sep, 'home','build','test','sandboxes',todaystr,'new_sandbox')
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Cross-browser multi-line text overflow with ellipsis appended within a fixed width and height
...
Just a quick basic idea.
I was testing with the following markup:
<div id="fos">
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin nisi ligula, dapibus a volutpat sit amet, mattis et dui. Nunc porttitor accumsan orci id luctus...