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How to check for Is not Null And Is not Empty string in SQL server?
... NULL values when used in a WHERE clause. As NULL will evaluate as UNKNOWN for these rather than TRUE.
CREATE TABLE T
(
C VARCHAR(10)
);
INSERT INTO T
VALUES ('A'),
(''),
(' '),
(NULL);
SELECT *
FROM T
WHERE C <> ''
Returns...
How can I tell AngularJS to “refresh”
...ute an expression in AngularJS from outside of
the AngularJS framework. (For example from browser DOM events,
setTimeout, XHR or third party libraries). Because we are calling into
the AngularJS framework we need to perform proper scope life cycle of
exception handling, executing watches.
...
Regex: Specify “space or start of string” and “space or end of string”
...
You can use any of the following:
\b #A word break and will work for both spaces and end of lines.
(^|\s) #the | means or. () is a capturing group.
/\b(stackoverflow)\b/
Also, if you don't want to include the space in your match, you can use lookbehind/aheads.
(?<=\s|^) #...
getMonth in javascript gives previous month
I am using a datepicker which gives a date in the format Sun Jul 7 00:00:00 EDT 2013.
Even though the month says July, if I do a getMonth, it gives me the previous month.
...
How to change the value of ${user} variable used in Eclipse templates
...template I would like Eclipse to use user's real name taken from account information (in Linux - but Windows solution is also welcome). Entering it somewhere into Eclipse configuration would be acceptable, too, alas I can't find the right place.
...
How to write “Html.BeginForm” in Razor
...
The following code works fine:
@using (Html.BeginForm("Upload", "Upload", FormMethod.Post,
new { enctype = "multipart/form-data" }))
{
@Html.ValidationSummary(true)
<fieldset>
Select a file <input type="file" n...
How do I find the number of arguments passed to a Bash script?
...
The number of arguments is $#
Search for it on this page to learn more:
http://tldp.org/LDP/abs/html/internalvariables.html#ARGLIST
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Get class name of django model
...e__.
Django models are derived from the ModelBase, which is the Metaclass for all models.
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Splitting templated C++ classes into .hpp/.cpp files--is it possible?
...ompiled. Now if the compiler has to generate the appropriate memory layout for the object it needs to know the data type of the template class.
Actually it must be understood that template class is not a class at all but a template for a class the declaration and definition of which is generated b...
Should I avoid 'async void' event handlers?
I know it is considered generally a bad idea to use fire-and-forget async void methods to start tasks, because there is no track of the pending task and it is tricky to handle exceptions which might be thrown inside such a method.
...