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SQL Server ':setvar' Error
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The :setvar only works in SQL command mode, so you are possibly within normal SQL execution in the management studio and have not swapped to command mode.
This can be done through the user interface in SQL Server Management Studio by going to the "Query" men...
What is the meaning of the term “thread-safe”?
...must satisfy the need for multiple threads to access the same shared data, and the need for a shared piece of data to be accessed by only one thread at any given time.
There are a few ways to achieve thread safety:
Re-entrancy:
Writing code in such a way that it can be partially exec...
How to get a vertical geom_vline to an x-axis of class date?
Even though I found Hadley's post in the google group on POSIXct and geom_vline , I could not get it done. I have a time series from and would like to draw a vertical line for years 1998, 2005 and 2010 for example. I tried with ggplot and qplot syntax, but still I either see no vertical line ...
android get real path by Uri.getPath()
...ssary for you to get a physical path?
For example, ImageView.setImageURI() and ContentResolver.openInputStream() allow you to access the contents of a file without knowing its real path.
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Is it bad practice to use Reflection in Unit testing? [duplicate]
...tests, it usually means the class in question has an unsuitable interface, and/or tries to do too much. So either its interface should be revised, or some code should be extracted into a separate class, where those problematic methods / field accessors can be made public.
Note that using Reflection...
How to show and update echo on same line
...hat could do this if I added a 3rd escape character.
The 2 options are -n and -e.
-n will not output the trailing newline. So that saves me from going to a new line each time I echo something.
-e will allow me to interpret backslash escape symbols.
Guess what escape symbol I want to use for this...
How to encode URL parameters?
...swered May 11 '18 at 9:01
Kyle VanderBeekKyle VanderBeek
74777 silver badges77 bronze badges
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...ethods rather than having a huge SQL query.
I saw elasticsearch recently and played with whoosh (a Python implementation of a search engine).
...
Twitter bootstrap 3 two columns full height
...ull-height columns (due to the custom css-table properties which we added) and with ratio 1:3 (Navigation:Content) for medium screen widths and above - (due to bootstrap's default classes: col-md-3 and col-md-9)
NB:
1) In order not to mess up bootstrap's native column classes we add another clas...
How do I make JavaScript beep?
...directly in JavaScript. You'll need to embed a short WAV file in the HTML, and then play that via code.
An Example:
<script>
function PlaySound(soundObj) {
var sound = document.getElementById(soundObj);
sound.Play();
}
</script>
<embed src="success.wav" autostart="false" width=...