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

...r exists but is not known by the user, data where there is no answer, etc. all of which constitute some sense of NULL). By the time that the SQL standard came around and agreed that NULL and the empty string were distinct entities, there were already Oracle users that had code that assumed the two ...
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Why can't variables be declared in a switch statement?

...lity and consistency in the code. In the old days, you might have automatically got an "extra" stack frame, but now that should not be the case for any decent optimizing compiler. – Tall Jeff Sep 18 '08 at 14:37 ...
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How to add directory to classpath in an application run profile in IntelliJ IDEA?

... Step 6 does not come up for me. I am on intellij 14. I have a folder called lib where my .jar are located. selecting the folder or jar will just parse the path into intellij. still does not work – Takeru Jan 21 '16 at 7:20 ...
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How to play with Control.Monad.Writer in haskell?

... <- logNumber 5; return (a*b) } :: Writer [String] Int (Input actually entered all on one line). Here I've specified the type of multWithLog to be Writer [String] Int. Now I can run it: ghci> runWriter multWithLog (15, ["Got number: 3","Got number: 5"]) And you see that we log all of ...
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Streaming Audio from A URL in Android using MediaPlayer?

...et rejected b'coz I have used Vitamio 4.x version – Pallavi Dec 22 '16 at 14:31 add a comment...
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What is the difference between the WPF TextBlock element and Label control? [duplicate]

Visually both of the following snippets produce the same UI. So why are there 2 controls.. Snippet1 6 Answers ...
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Twitter Bootstrap vs jQuery UI? [closed]

...n several projects. The biggest difference in my opinion jQuery UI is fallback safe, it works correctly and looks good in old browsers, where Bootstrap is based on CSS3 which basically means GREAT in new browsers, not so great in old Update frequency: Bootstrap is getting some great big updates ...
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adding multiple entries to a HashMap at once in one statement

... 2016) as follow: Map<String, Integer> cities = Map.of("Brussels", 1_139000, "Cardiff", 341_000); The var-args case for Map is a little bit harder, you need to have both keys and values, but in Java, methods can’t have two var-args parameters. So the general case is handled by taking a va...
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Is there some way to PUSH data from web server to browser?

... Yes, what you're looking for is COMET http://en.wikipedia.org/wiki/Comet_(programming). Other good Google terms to search for are AJAX-push and reverse-ajax. share | improve this answer ...
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A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the followi

...st nailed down the root cause on my own Windows machine. The GlassFish installer complained with exactly the same error message and after digging in GlassFish forums, the cause was clear: a corrupt JRE install on a Windows machine. My JRE came along with the JDK and the Java 6 JDK installer didn't i...