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SQL Server Insert if not exists
...t connection executes the INSERT, i.e. a race condition. See stackoverflow.com/a/3791506/1836776 for a good answer on why even wrapping in a transaction doesn't solve this.
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Run a single test method with maven
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To run a single test method in Maven, you need to provide the command as:
mvn test -Dtest=TestCircle#xyz test
where TestCircle is the test class name and xyz is the test method.
Wild card characters also work; both in the method name and class name.
If you're testing in a multi-mod...
ListView item background via custom selector
...g="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:background="@drawable/listitem_background"
>
...
</LinearLayout>
listite...
What are MVP and MVC and what is the difference?
...ay of building user interfaces that many tools encourage you are likely to come across three design patterns called Model-View-Controller , Model-View-Presenter and Model-View-ViewModel . My question has three parts to it:
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Abstract Class vs Interface in C++ [duplicate]
...ot instantiable
};
In Windows programming, interfaces are fundamental in COM. In fact, a COM component exports only interfaces (i.e. pointers to v-tables, i.e. pointers to set of function pointers). This helps defining an ABI (Application Binary Interface) that makes it possible to e.g. build a CO...
Error in strings.xml file in Android
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post your complete string. Though, my guess is there is an apostrophe (') character in your string. replace it with (\') and it will fix the issue. for example,
//strings.xml
<string name="terms">
Hey Mr. Android, are you stuck?...
Parse RSS with jQuery
...ack) {
$.ajax({
url: document.location.protocol + '//ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&callback=?&q=' + encodeURIComponent(url),
dataType: 'json',
success: function(data) {
callback(data.responseData.feed);
}
});
}
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How to send an email with Python?
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I recommend that you use the standard packages email and smtplib together to send email. Please look at the following example (reproduced from the Python documentation). Notice that if you follow this approach, the "simple" task ...
PHP: If internet explorer 6, 7, 8 , or 9
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warning about too many open figures
...on the collective wisdom here for this answer, @JoeKington mentions in the comments that plt.close(fig) will remove a specific figure instance from the pylab state machine (plt._pylab_helpers.Gcf) and allow it to be garbage collected.
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