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SQL Server : Columns to Rows
...icatorname, indicatorvalue);
Finally, if you have 150 columns to unpivot and you don't want to hard-code the entire query, then you could generate the sql statement using dynamic SQL:
DECLARE @colsUnpivot AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX)
select @colsUnpivot
= stuff((select ','+qu...
jquery variable syntax [duplicate]
...ction between regular vars and jQuery objects.
example:
var self = 'some string';
var $self = 'another string';
These are declared as two different variables. It's like putting underscore before private variables.
A somewhat popular pattern is:
var foo = 'some string';
var $foo = $('.foo');
...
What does the @ symbol before a variable name mean in C#? [duplicate]
I understand that the @ symbol can be used before a string literal to change how the compiler parses the string. But what does it mean when a variable name is prefixed with the @ symbol?
...
Can you center a Button in RelativeLayout?
...nter a button in relative layout, is this possible? I've tried the Gravity and Orientation functions but they don't do anything.
...
How to create a dialog with “yes” and “no” options?
I am going to make a button to take an action and save the data into a database.
13 Answers
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How best to determine if an argument is not sent to the JavaScript function
.... On the other hand, the comparison === undefined might be faster than the string comparison. My tests seem to indicate that you're right, though: x === undefined needed ~1.5x the time of typeof x === 'undefined'
– Christoph
Jan 4 '09 at 21:26
...
Can I exclude some concrete urls from inside ?
... or to add a check in the doFilter() method of the Filter listening on /*.
String path = ((HttpServletRequest) request).getRequestURI();
if (path.startsWith("/specialpath/")) {
chain.doFilter(request, response); // Just continue chain.
} else {
// Do your business stuff here for all paths ot...
How to change theme for AlertDialog
...
In Dialog.java (Android src) a ContextThemeWrapper is used. So you could copy the idea and do something like:
AlertDialog.Builder builder = new AlertDialog.Builder(new ContextThemeWrapper(this, R.style.AlertDialogCustom));
And then style i...
How to get the currently logged in user's user id in Django?
...
First make sure you have SessionMiddleware and AuthenticationMiddleware middlewares added to your MIDDLEWARE_CLASSES setting.
The current user is in request object, you can get it by:
def sample_view(request):
current_user = request.user
print current_user....
Cannot delete or update a parent row: a foreign key constraint fails
...
In my case: I just ran a large SQL file and one of the final statements failed, so I just wanna delete all tables, fix the syntax error, and rerun, making this exactly what I was looking for.
– ekerner
Nov 5 '14 at 17:18
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