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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?

...ce them otherwise? If so, there's your answer. Do I have to use EJBs? Really? Avoid them if at all possible--they are really only needed for very large, enterprise-class systems. Remember that they are merely tools, and big ones at that (can anyone say "Golden Sledgehammer"?). They are heavily...
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Why are joins bad when considering scalability?

... Scalability is all about pre-computing (caching), spreading out, or paring down the repeated work to the bare essentials, in order to minimize resource use per work unit. To scale well, you don't do anything you don't need to in volume, and...
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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh

...bviews whenever you can. You can be more productive, and take advantage of all the OO mechanisms that should things easier to maintain. Use Core Graphics when you can't get the performance you need out of UIKit, or you know trying to hack together drawing effects in UIKit would be more complicated....
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Convert DOS line endings to Linux line endings in Vim

If I open files I created in Windows, the lines all end with ^M . How do I delete these characters all at once? 26 Answers...
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What's default HTML/CSS link color?

...ect them to work. But keep in mind that a browser is free to ignore any or all of these guidelines, as it is never required to follow them. It is, however, recommended for a consistent user experience across browsers (which is how "expected" is defined in this context), so chances are that these col...
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?

... Are you sure that is all there is to it? I often find that the page loading hangs on a shebang URL on facebook (even after many reloads), but if you manually remove the #!, it works. Not to mention you often get "1.5 URLs" (i.e. the old URL remai...
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How do I (or can I) SELECT DISTINCT on multiple columns?

I need to retrieve all rows from a table where 2 columns combined are all different. So I want all the sales that do not have any other sales that happened on the same day for the same price. The sales that are unique based on day and price will get updated to an active status. ...
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Visual Studio 2010 annoyingly opens documents in wrong MDI pane

...ng the window layout and see if that fixes it. First, Window -> Close All Documents Then, Window -> Reset Window Layout Exit VS to be sure, then go back in. share | improve this answer ...
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Regular expression to match URLs in Java

...s. */ public class Patterns { /** * Regular expression to match all IANA top-level domains. * List accurate as of 2011/07/18. List taken from: * http://data.iana.org/TLD/tlds-alpha-by-domain.txt * This pattern is auto-generated by frameworks/ex/common/tools/make-iana-tl...
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Differences between MySQL and SQL Server [closed]

I'm an ASP.NET developer who has used Microsoft SQL Server for all my database needs (both at work and for personal projects). ...