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What is the PostgreSQL equivalent for ISNULL()
...SE WHEN field IS NULL THEN 'Empty' ELSE field END AS field_alias
Or more idiomatic:
SELECT coalesce(field, 'Empty') AS field_alias
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What is the proper #include for the function 'sleep()'?
...h> under the #include <stdio.h> part. This is supposed to get rid of the warning that says "Implicit declaration of function 'sleep' is invalid in C99". But for some reason after I put #include <stdlib.h> , the warning does not go away.. This problem does not stop the program from...
.gitignore exclude files in directory but not certain directories
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you can put a .gitignore file in each of it (like mipadi said) or make something like that on your root .gitingnore file
/assets/*/
/assets/*.*
it works fine for me
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How should I write tests for Forms in Django?
...st the form and not the view where the form is rendered. Example to get an idea:
from django.test import TestCase
from myapp.forms import MyForm
class MyTests(TestCase):
def test_forms(self):
form_data = {'something': 'something'}
form = MyForm(data=form_data)
self.asse...
Return only string message from Spring MVC 3 Controller
...is another way:
@RequestMapping(value="/controller", method=GET)
public void foo(HttpServletResponse res) {
try {
PrintWriter out = res.getWriter();
out.println("Hello, world!");
out.close();
} catch (IOException ex) {
...
}
}
but the first meth...
AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
...g-init="rootFolders='Bob'") works fine.
– Kaizar Laxmidhar
Sep 11 '14 at 13:24
And how do I set the default value if I...
Interfaces vs. abstract classes [duplicate]
...to functions
Have slightly more control in how the "interface" methods are called
Ability to provide behavior related or unrelated to the interface for "free"
Interfaces are merely data passing contracts and do not have these features. However, they are typically more flexible as a type can only b...
Regex: Specify “space or start of string” and “space or end of string”
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\b is a zero-width assertion; it never consumes any characters. There's no need to wrap it in a lookaround.
– Alan Moore
Jul 15 '11 at 21:41
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When increasing the size of VARCHAR column on a large table could there be any problems?
... 500k rows. What I need to know is if there are any issues I have not considered.
5 Answers
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How can I list (ls) the 5 last modified files in a directory?
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Which platform/version do you refer to? Can you provide a link? Looking at the linux man-page yields the opposite of what you state: -t sort by modification time, newest first
– Joma
Sep 8 '16 at 21:35
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