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System.Data.SQLite Close() not releasing database file

...d the same problem a while ago while writing a DB abstraction layer for C# and I never actually got around to finding out what the issue was. I just ended up throwing an exception when you attempted to delete a SQLite DB using my library. Anyway, this afternoon I was looking through it all again an...
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Postgresql - change the size of a varchar column to lower length

I have a question about the ALTER TABLE command on a really large table (almost 30 millions rows). One of its columns is a varchar(255) and I would like to resize it to a varchar(40) . Basically, I would like to change my column by running the following command: ...
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How do I unbind “hover” in jQuery?

...'mouseenter mouseleave'); As of jQuery 1.7, you are also able use $.on() and $.off() for event binding, so to unbind the hover event, you would use the simpler and tidier: $('#myElement').off('hover'); The pseudo-event-name "hover" is used as a shorthand for "mouseenter mouseleave" but was hand...
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“webxml attribute is required” error in Maven

...en-war-plugin. Looks like the web.xml is at right place, still you can try and give the location explicitly <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <webXml>src\main...
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How to convert a string of bytes into an int?

...afał: Not really, since Greg was using <, according to the docs L is standard size (4) "when the format string starts with one of '<', '>', '!' or '='." docs.python.org/library/struct.html#format-characters – André Laszlo Dec 24 '11 at 0:50 ...
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ViewDidAppear is not called when opening app from background

I have a View Controller in which my value is 0 (label) and when I open that View Controller from another ViewController I have set viewDidAppear to set value 20 on label. It works fine but when I close my app and than again I open my app but the value doesn't change because viewDidLoad , vie...
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How should I read a file line-by-line in Python?

...files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by every function that could encounter the error, including those in libraries. What a nightmare. Or you could j...
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Passing a method as a parameter in Ruby

...ult argument in a block declaration like that. So you need to use a splat and setup the default in the proc code itself. Or, depending on your scope of all this, it may be easier to pass in a method name instead. def weightedknn(data, vec1, k = 5, weightf = :gaussian) ... weight = self.send...
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Best way to compare dates in Android

... just wanted to make sure, before accepting. thanks. it worked perfectly and is concise and simple as wanted. – nunos May 27 '12 at 15:14 16 ...
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How to fix height of TR?

... Tables are iffy (at least, in IE) when it comes to fixing heights and not wrapping text. I think you'll find that the only solution is to put the text inside a div element, like so: td.container > div { width: 100%; height: 100%; overflow:hidden; } td.container { ...