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Deleting rows with MySQL LEFT JOIN

...ed May 4 '10 at 6:26 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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Method can be made static, but should it?

...nce members of the C# Language Specification explains the difference. Generally, static methods can provide a very small performance enhancement over instance methods, but only in somewhat extreme situations (see this answer for some more details on that). Rule CA1822 in FxCop or Code Analysis stat...
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android fragment- How to save states of views in a fragment when another fragment is pushed on top o

... Now on hitting back FragA comes to the top and the onCreateView() is called. Now I had FragA in a particular state before FragB got pushed on top of it. ...
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Zero-pad digits in string

... First of all, your description is misleading. Double is a floating point data type. You presumably want to pad your digits with leading zeros in a string. The following code does that: $s = sprintf('%02d', $digit); For more informa...
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Gesture recognizer and button actions

...nizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { // Disallow recognition of tap gestures in the segmented control. if ((touch.view == yourButton)) {//change it to your condition return NO; } return YES; } hope it will help Edit As Daniel noted you must con...
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How to call a stored procedure from Java and JPA

I am writing a simple web application to call a stored procedure and retrieve some data. Its a very simple application, which interacts with client's database. We pass employee id and company id and the stored procedure will return employee details. ...
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Backwards migration with Django South

Ok, so this seems like a really silly thing to ask, and I'm sure I'm missing something somewhere. 3 Answers ...
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SQL Server - When to use Clustered vs non-Clustered Index?

...stered and non clustered indexes and have an understanding of how they actually work. I understand how clustered and non-clustered indexes improve read performance. But one thing I am not sure is that what would be the reasons where I would choose one over the other. ...
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How do I create a SHA1 hash in ruby?

... of ruby. Worse yet, the string being passed to hexdigest isn't dynamic at all! This method would return the same hash regardless what data you give it! – Blixxy Jul 7 '12 at 10:10 ...
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How can I reverse a NSArray in Objective-C?

...ne. If I see a method that returns an immutable object, I expect it to actually be returning an immutable object. Having it appear to return an immutable object but actual return a mutable object is a dangerous practice to get into. – Christine Jul 2 '12 at 22:...