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mysql - how many columns is too many?

...o you think that perhaps it's denormalized? Does that make SO database bad and Jeff Atwood crazy? – ChssPly76 Sep 25 '09 at 19:06 ...
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How do I turn on SQL debug logging for ActiveRecord in RSpec tests?

I have some RSpec tests for my models and I would like to turn on SQL ActiveRecord logging just like I see in the Rails server mode. How to do that? ...
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Xcode 4: create IPA file instead of .xcarchive

In Xcode 3.2.5 I use "Build And Archive" to create an IPA file. In Xcode 4 you can use "Product -> Archive" to archive an application in an .xcarchive bundle. ...
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Why do I need Transaction in Hibernate for read-only operations?

...actions as read-only. Transactions for reading might look indeed strange and often people don't mark methods for transactions in this case. But JDBC will create transaction anyway, it's just it will be working in autocommit=true if different option wasn't set explicitly. But there is no guarantee ...
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Why does Unicorn need to be deployed together with Nginx?

I would like to know the difference between Nginx and Unicorn. As far as I understand, Nginx is a web server while Unicorn is a Ruby HTTP server. ...
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Correct way to use get_or_create?

... @zypro It's like create(), create object and save it all in one step and doesn't need any save() – Amin Mir Jun 19 at 6:05 add a comment ...
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How to edit a JavaScript alert box title?

... While this is an answer and is IN FACT true, I have determined that you can make your own version of alert and it will do what you want. A simple modal and override the alert function call. – Fallenreaper Jan ...
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Postgresql GROUP_CONCAT equivalent?

I have a table and I'd like to pull one row per id with field values concatenated. 7 Answers ...
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input type=“text” vs input type=“search” in HTML5

...m working with form input fields, especially <input type="text" /> and <input type="search" /> IMO there wasn't any difference in all major browser including Safari, Chrome, Firefox and Opera. And the search field also behaves like a regular text field. ...
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What is fastest children() or find() in jQuery?

...f performance is truly an issue, then experiment to find the best solution and use that (or see some of the benchmarks in the other answers here). share | improve this answer | ...