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error: ‘NULL’ was not declared in this scope
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Actually it's not a keyword in Java either.
– Man of One Way
Jun 19 '12 at 22:11
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Best approach to remove time part of datetime in SQL Server
...er SQL Server optimiser versions managing CAST to date correctly, but generally it will be a bad idea ...
Edit, Sep 2018, for datetime2
DECLARE @datetime2value datetime2 = '02180912 11:45' --this is deliberately within datetime2, year 0218
DECLARE @datetime2epoch datetime2 = '19000101'
select DAT...
Splitting a string into chunks of a certain size
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yield return str.Substring(i, chunkSize);
}
This will work for all strings that can be split into a whole number of chunks, and will throw an exception otherwise.
If you want to support strings of any length you could use the following code:
static IEnumerable<string> ChunksUpto(...
Using psql how do I list extensions installed in a database?
How do I list all extensions that are already installed in a database or schema from psql?
3 Answers
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Visual Studio: Make view code default
... I'm fairly certain I didn't have the "Open With..." option until I installed the TF Power Tools.
– Disillusioned
Jul 10 '12 at 16:42
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How can I change the current URL?
...n older versions of IE, but check out jQuery BBQ, which makes this work in all browsers.
You could use HTML5 History to modify the path without reloading the page. This will allow you to change from example.com/foo to example.com/bar. Using this is easy:
window.history.pushState("example.com/foo"...
How to create a tuple with only one element
In the below example I would expect all the elements to be tuples, why is a tuple converted to a string when it only contains a single string?
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How to add extension methods to Enums
... methods for existing classes in a way other people on your team might actually discover and use. Given that enums are classes like any other it shouldn’t be too surprising that you can extend them, like:
enum Duration { Day, Week, Month };
static class DurationExtensions
{
public static Date...
How to fix the aspect ratio in ggplot?
...you need to adjust this with the limits of the variables or plot area (not all limits are nicely divisible by whole numbers like these examples).
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How to implement onBackPressed() in Fragments?
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I solved in this way override onBackPressed in the Activity. All the FragmentTransaction are addToBackStack before commit:
@Override
public void onBackPressed() {
int count = getSupportFragmentManager().getBackStackEntryCount();
if (count == 0) {
super.onBackPressed(...