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Is there a way to access the “previous row” value in a SELECT statement?
...from table t1, table t2
where t1.primaryKey = t2.primaryKey - 1
If you know how to order things but not how to get the previous value given the current one (EG, you want to order alphabetically) then I don't know of a way to do that in standard SQL, but most SQL implementations will have extensio...
How do you exit from a void function in C++?
...g means returning void itself eh? void means nothing anyway!! Hmm I get it now.
– quantum231
Jul 18 '12 at 18:40
@quan...
What's the difference between deadlock and livelock?
...Assume A receives (or already has) r1, and B receives (or already has) r2. Now each try to get the resource the other has, without any timeout. A is blocked because B holds r2, and B is blocked because A holds r1. Each process is blocked and thus cannot release the resource the other wants, causing ...
Python syntax for “if a or b or c but not all of them”
...le which fits better with the original interface implied in the question. Now it is bending the tool to meet the available spec ... ;)
– wim
May 14 '13 at 2:11
2
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IntelliJ IDEA with Junit 4.7 “!!! JUnit version 3.8 or later expected:”
...4.7.jar up, so that it comes before Android 1.6 Platform in the classpath. Now the test runner will be happy as it loads the new JUnit version.
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How to initialize static variables
...r = array(…);
}
}
Foo::init();
PHP 5.6 can handle some expressions now.
/* For Abstract classes */
abstract class Foo{
private static function bar(){
static $bar = null;
if ($bar == null)
bar = array(...);
return $bar;
}
/* use where necessary...
How to preventDefault on anchor tags?
...nction(event) {
event.preventDefault();
});
}
})
Now you can add the eat-click attribute to any element and it will get preventDefault()'ed automagically.
Benefits:
You don't have to pass the ugly $event object into your do() function.
Your controller is more unit testab...
Docker can't connect to docker daemon
...Yes. This was the problem for me. I added my user to the docker group and now I can connect to the daemon. Thanks
– Bogdan
Dec 9 '15 at 5:08
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How to get a Static property with Reflection
... key for me was to use the .FlattenHierarchy BindingFlag. I don't really know why I just added it on a hunch and it started working. So the final solution that allows me to get Public Instance or Static Properties is:
obj.GetType.GetProperty(propName, Reflection.BindingFlags.Public _
Or Reflect...
Tracking the script execution time in PHP
...
Just adding a small update: This function is now supported on Windows as well.
– ankush981
Jun 21 '15 at 7:30
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