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How to display an unordered list in two columns?

... contents of the list changes you will need to perform the operation for reordering the list into columns and reprinting. The solution below uses jQuery for brevity. http://jsfiddle.net/HP85j/19/ HTML: <div> <ul class="columns" data-columns="2"> <li>A</li> ...
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What is the maven-shade-plugin used for, and why would you want to relocate Java packages?

...Qux's code will not work) or Bar:2.0 (which Foo's code will not work)? In order to solve this problem, developer of Foo can choose to use shade plugin to rename its usage of Bar, so that all classes in Bar:1.0 jar are embedded in Foo jar, and the package of the embedded Bar classes is changed from ...
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What is PAGEIOLATCH_SH wait type in SQL Server?

... like this: Select * from <table> where <col1> = <value> order by <PrimaryKey> , check that you have a composite index on (col1, col_primary_key). If you don't have one, then you'll need either a full INDEX SCAN if the PRIMARY KEY is chosen, or a SORT if an index on col1 is ...
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Storing money in a decimal column - what precision and scale?

...However, rather than a one-size-fits-all approach, some research may be in order. Ask your designer or domain expert about accounting rules which may be applicable: GAAP, EU, etc. I vaguely recall some EU intra-state transfers with explicit rules for rounding to five decimal places, therefore using ...
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Howto: Clean a mysql InnoDB storage engine?

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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When and why are database joins expensive?

... bulk disk reads which are the most expensive aspect of the exercise by an order of magnitude. Performing a join, by contrast, logically requires retrieval of only the keys. In practice, not even the key values are fetched: the key hash values are used for join comparisons, mitigating the cost of mu...
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scala vs java, performance and memory? [closed]

...guages Benchmark Game Scala code is written in a rather Java-like style in order to get Java-like performance, and thus has Java-like memory usage. You can do this in Scala: if you write your code to look like high-performance Java code, it will be high-performance Scala code. (You may be able to ...
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How to fix “Headers already sent” error in PHP

... Unintentional: Whitespace before <?php or after ?> The UTF-8 Byte Order Mark specifically Previous error messages or notices Intentional: print, echo and other functions producing output Raw <html> sections prior <?php code. Why does it happen? To understand why header...
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Rails extending ActiveRecord::Base

... end # add your static(class) methods here class_methods do #E.g: Order.top_ten def top_ten limit(10) end end end # include the extension ActiveRecord::Base.send(:include, ActiveRecordExtension) Create a file in the config/initializers directory called extensions...
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Functional design patterns [closed]

...s. Chapters 11-13 cover Functors, Applicative Functors and Monads, in that order. This is helpful - many tutorials introduce Functors and then Monads, and then tack Applicative Functors on at the end (if they cover it at all). The order in LYAH is better, because moving from Functors => Applicati...