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Correct way to use StringBuilder in SQL
... of using StringBuilder, i.e reducing memory. Is it achieved?
No, not at all. That code is not using StringBuilder correctly. (I think you've misquoted it, though; surely there aren't quotes around id2 and table?)
Note that the aim (usually) is to reduce memory churn rather than total memory used...
Generate unique random numbers between 1 and 100
...mber between 0 (inclusive) and 1 (exclusive). If the Math.random() accidentally returns 0, the Math.ceil(0) is also 0, though the chance is low.
– Qian Chen
Apr 22 '15 at 9:58
...
Centering a background image, using CSS
...screenshots
– X10nD
Apr 15 '10 at 7:32
...
Return XML from a controller's action in as an ActionResult?
...
– Anthony Serdyukov
Apr 6 '10 at 2:32
Using XmlSerialiser and member annotations can be hard to maintain. Since Luke ...
Unix - create path of folders and file
...her/path/here && touch $_/cpredthing.txt. The $_ expands to essentially the "last argument in the last command executed".
– Sgnl
Apr 19 '16 at 1:37
4
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How to set a timer in android
...pplication has acquired a wakeLock and hence you are sure that the phone shall not go into the sleep state. If phone does go to the sleep state then sendMessageDelayed as well as sendMessageAtTime will not work. Hence in that scenario AlarmManager would be reliable choice.
– cr...
How can I present a file for download from an MVC controller?
In WebForms, I would normally have code like this to let the browser present a "Download File" popup with an arbitrary file type, like a PDF, and a filename:
...
Build Maven Project Without Running Unit Tests
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Does Dart support enumerations?
...ase Fruit.apple:
print('it is an apple');
break;
}
// get all the values of the enums
for (List<Fruit> value in Fruit.values) {
print(value);
}
// get the second value
print(Fruit.values[1]);
}
The old approach before 1.8:
class Fruit {
static const APPLE =...
Using R to download zipped data file, extract, and import data
...
Zip archives are actually more a 'filesystem' with content metadata etc. See help(unzip) for details. So to do what you sketch out above you need to
Create a temp. file name (eg tempfile())
Use download.file() to fetch the file into the temp....