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ALTER TABLE, set null in not null column, PostgreSQL 9.1
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208
ALTER TABLE person ALTER COLUMN phone DROP NOT NULL;
More details in the manual: http://www.p...
Using a BOOL property
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207
Apple simply recommends declaring an isX getter for stylistic purposes. It doesn't matter wheth...
How to break out of nested loops?
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Use:
if (condition) {
i = j = 1000;
break;
}
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How to include layout inside layout?
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edited Sep 5 at 10:59
Peter Naggschga
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answered Apr 12 '11 at 8:03
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What is a provisioning profile used for when developing iPhone applications?
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answered Jul 29 '10 at 13:02
AkuseteAkusete
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How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
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Sounds like you have the Visual Studio Productivity Power Tools 2013 installed. Go into its settings and turn off "Fix Mixed Tabs"...
Tools -> Options -> Productivity Power Tools -> Turn Extensions On/Off
If you have the default VS settings, tabs in the editor are converted t...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
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edited Jul 30 at 22:02
Rajesh Chamarthi
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What does new self(); mean in PHP?
...getInstance();
var_dump($a);
Here, you'll get :
object(MyChildClass)#1 (0) { }
Which means self means MyChildClass -- i.e. the class in which it is written.
For the second situation, the code would look like this :
class MyParentClass {
public static function getInstance() {
ret...
How do I include a pipe | in my linux find -exec command?
...suggestion from Paul Tomblin:
find . -name "file_*" -follow -type f -print0 | xargs -0 zcat | agrep -dEOE 'grep'
... which costs one invocation of find, one invocation of xargs, a few invocations of zcat and one invocation of agrep.
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Example invalid utf8 string?
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answered Aug 19 '09 at 17:26
Nemanja TrifunovicNemanja Trifunovic
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