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Why does Oracle 9i treat an empty string as NULL?

... But it would be more precise if the second line was changed to '' is not always treated as NULL. – ypercubeᵀᴹ Jul 5 '11 at 7:48 ...
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How to highlight a current menu item?

...p; paste errors. I've found that the directive approach by @kfis, although more lines, is more reusable and keeps the markup cleaner. – A. Murray Dec 18 '13 at 12:15 ...
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Java: Detect duplicates in ArrayList?

... I go about detecting (returning true/false) whether an ArrayList contains more than one of the same element in Java? 16 An...
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Returning binary file from controller in ASP.NET Web API

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How do I correctly detect orientation change using Phonegap on iOS?

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Python concatenate text files

...d that your solution wasn't going to be efficient. I'm willing to bet it's more than efficient enough for the OP's use case, and for whatever use case eyquem has in mind. If he thinks it isn't, it's his responsibility to prove that before demanding that you optimize it. – abarn...
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How to allow only numeric (0-9) in HTML inputbox using jQuery?

...// Allow digits only, using a RegExp }); }); See the JSFiddle demo for more input filter examples. Also note that you still must do server side validation! Pure JavaScript (without jQuery) jQuery isn't actually needed for this, you can do the same thing with pure JavaScript as well. See this a...
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Explain how finding cycle start node in cycle linked list work?

...to X_mu, the start of the cycle (by definition of mu). Then if you take i more steps, where i is a multiple of the cycle length, you end up back at the cycle start: X_mu + i = X_mu. But addition is commutative, so this is equivalent to taking i steps to get from the start to the first meeting point...
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What integer hash function are good that accepts an integer hash key?

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Convert decimal to hexadecimal in UNIX shell script

... maybe not some shell I haven't tried? I don't keep plain sh installed anymore but clearly skiphoppy is looking for what other options there are – fuzzyTew Jul 13 '13 at 21:48 ...