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How to use if-else option in JSTL

...ut <c:otherwise> seems a little verbose, eh? – andronikus Oct 27 '11 at 13:29 7 start nesti...
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Insert, on duplicate update in PostgreSQL?

...mple 38-2. Exceptions with UPDATE/INSERT This example uses exception handling to perform either UPDATE or INSERT, as appropriate: CREATE TABLE db (a INT PRIMARY KEY, b TEXT); CREATE FUNCTION merge_db(key INT, data TEXT) RETURNS VOID AS $$ BEGIN LOOP -- first try to update the key...
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Joda-Time: what's the difference between Period, Interval and Duration?

... are defined e.g. this might be the interval between 20:00:00GMT yesterday and 09:00:00GMT this morning. A duration in Joda-Time represents a duration of time measured in milliseconds. The duration is often obtained from an interval. i.e. we can subtract start from end of an interval to derive a du...
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How does Google's Page Speed lossless image compression work?

...website it will suggest cases where an image can be losslessly compressed, and provide a link to download this smaller image. ...
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How to clear MemoryCache?

.... What is the quickest way to do this? Should I loop through all the items and remove them one at a time or is there a better way? ...
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Android Reading from an Input stream efficiently

I am making an HTTP get request to a website for an android application I am making. 12 Answers ...
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Installing specific package versions with pip

...re: http://pypi.python.org/pypi/MySQL-python/1.2.2 The download link 404s and the fallback URL links are re-directing infinitely due to sourceforge.net's recent upgrade and PyPI's stale URL. So to properly install the driver, you can follow these steps: pip uninstall MySQL_python pip install -Iv ...
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UICollectionView's cellForItemAtIndexPath is not being called

Only my second time using UICollectionView's and perhaps I have bitten off more than I can chew but nevertheless: 31 Answer...
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Mongoose indexing in production code

Per the Mongoose documentation for MongooseJS and MongoDB / Node.js : 3 Answers ...
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Command copy exited with code 4 when building - Visual Studio restart solves it

Every now and then when I build my solution here (with 7 projects in it) I get the dreaded 'Command copy exited with code 4' error, in Visual Studio 2010 Premium ed. ...