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What is the difference between UNION and UNION ALL?
...u do not want the duplicates (especially when developing reports).
UNION Example:
SELECT 'foo' AS bar UNION SELECT 'foo' AS bar
Result:
+-----+
| bar |
+-----+
| foo |
+-----+
1 row in set (0.00 sec)
UNION ALL example:
SELECT 'foo' AS bar UNION ALL SELECT 'foo' AS bar
Result:
+-----+
| b...
What are the differences between json and simplejson Python modules?
...o use one or the other as a fallback.
try:
import simplejson as json
except ImportError:
import json
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Detecting WPF Validation Errors
... based on errors thrown in your Data Layer during Data Binding using the ExceptionValidationRule or DataErrorValidationRule .
...
How do I get the name of the current executable in C#?
I want to get the name of the currently running program, that is the executable name of the program. In C/C++ you get it from args[0] .
...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
You can use the function tz_localize to make a Timestamp or DateTimeIndex timezone aware, but how can you do the opposite: how can you convert a timezone aware Timestamp to a naive one, while preserving its timezone?
...
Hide Twitter Bootstrap nav collapse on click
...av a').on('click', function(){
$('.btn-navbar').click(); //bootstrap 2.x
$('.navbar-toggle').click(); //bootstrap 3.x by Richard
$('.navbar-toggler').click(); //bootstrap 4.x
});
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How to write a CSS hack for IE 11? [duplicate]
...y Test</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<style>
@media all and (-ms-high-contrast:none)
{
.foo { color: green } /* IE10 */
*::-ms-backdrop, .foo { color: red } /* IE11 */
}
</style>
<...
Should commit messages be written in present or past tense? [closed]
...plicit question, "what will applying this changeset/patch do?" It will "Fix the XXX bug in YYY"!
For other verbs writing them as a command seems more natural, and works better if you have a specific goal up-front—you can literally write the commit summary along with up-front tests before the wor...
How do I print a list of “Build Settings” in Xcode project?
Is there a Canonical list of Xcode Environment Variables that can be used in Build Rules etc?
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