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Count with IF condition in MySQL query

I have two tables, one is for news and the other one is for comments and I want to get the count of the comments whose status has been set as approved. ...
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C++ sorting and keeping track of indexes

Using C++, and hopefully the standard library, I want to sort a sequence of samples in ascending order, but I also want to remember the original indexes of the new samples. ...
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What is the purpose of XORing a register with itself? [duplicate]

...t is more efficient. The opcode is shorter than mov eax, 0, only 2 bytes, and the processor recognizes the special case and treats it as a mov eax, 0 without a false read dependency on eax, so the execution time is the same. ...
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How can I provide multiple conditions for data trigger in WPF?

...ions> <Condition Binding="{Binding Path=Name}" Value="Portland" /> <Condition Binding="{Binding Path=State}" Value="OR" /> </MultiDataTrigger.Conditions> <Setter Property="Background" Value="Cyan" /> </MultiDataTrigger> &...
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Can you turn off Peek Definition in Visual Studio 2013 and up?

In Visual Studio 2013 and up, there is the Peek Definition feature when you Ctrl + Click. At first I thought this was cool, but I have found that the majority of the time, I need to click the Promote to Document button, since I make lots of changes to the files I Ctrl + Click on. But after Googl...
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Copy object values in Visual Studio debug mode

...tudio debug mode it's possible to hover over variables to show their value and then right-click to "Copy", "Copy Expression" or "Copy Value". ...
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Generic List - moving an item within the list

So I have a generic list, and an oldIndex and a newIndex value. 10 Answers 10 ...
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Numpy `logical_or` for more than two arguments

...arrays? (The same question could be asked with regard to Numpy's logical_and and obtaining the intersection of more than two arrays.) ...
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HTML5 Number Input - Always show 2 decimal places

... Solved following the suggestions and adding a piece of jQuery to force the format on integers: parseFloat($(this).val()).toFixed(2) share | improve this a...
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List comprehension in Ruby

... % 2 == 0 ? x * 3 : nil}.compact Slightly cleaner, at least to my taste, and according to a quick benchmark test about 15% faster than your version... share | improve this answer | ...