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MongoDB: How to query for records where field is null or not set?
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Storing custom objects in an NSMutableArray in NSUserDefaults
...reason trying to store my NSMutableArray of custom Location classes always comes back empty.
5 Answers
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What does -XX:MaxPermSize do?
.... If so, the maximum permanent generation size can
be increased with the command-line option -XX:MaxPermSize=.
Note that this other Oracle documentation lists the other HotSpot arguments.
Update : Starting with Java 8, both the permgen space and this setting are gone. The memory model used for ...
Is there a read-only generic dictionary available in .NET?
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+1 for posting complete code and not just a link, but I'm curious, what's the point of an empty constructor in a ReadOnlyDictionary? :-)
– Samuel Neff
Feb 22 '11 at 16:36
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Should bower_components be gitignored?
...practice to keep only the bower.json file and gitignore the whole bower_components directory?
6 Answers
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How can I do SELECT UNIQUE with LINQ?
...at goes in the .OrderBy() parameters. You have name=>name. Is that name coming from the column name in the DB? Because we have dbo.Color.Name then just name=>name which hints to me it is not the column name ? Bizarre it also sorts properly if I just change that to .OrderBy(a=>a)
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What is a “Bitmap heap scan” in a query plan?
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The best explanation comes from Tom Lane, which is the algorithm's author unless I'm mistaking. See also the wikipedia article.
In short, it's a bit like a seq scan. The difference is that, rather than visiting every disk page, a bitmap index sc...
HTML table with fixed headers?
...ng'), 160); // 160 is height
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
<div style="width:300px;border:6px green solid;">
<table border="1" width="100%" id="tblNeedsScrolling">
<thead>
<tr><t...