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How to prevent the activity from loading twice on pressing the button

I am trying to prevent the activity from loading twice if I press the button twice instantly after the first click. 19 Answ...
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Can I use CASE statement in a JOIN condition?

The following image is a part of Microsoft SQL Server 2008 R2 System Views. From the image we can see that the relationship between sys.partitions and sys.allocation_units depends on the value of sys.allocation_units.type . So to join them together I would write something similar to this: ...
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Load local JSON file into variable

...nts:queue" }, { "id": "0.79281", "name": " contents:mqq_error" } ] } You also had an extra }. share | improve this answer | follow ...
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What is the difference between NTFS Junction Points and Symbolic Links?

... as Symlink is to Hardlink in Unix. http://en.wikipedia.org/wiki/Symbolic_link#Windows_7_.26_Vista_symbolic_link Windows 7 and Windows Vista support symbolic links for both files and directories with the command line utility mklink. Unlike junction points, a symbolic link can also point to a f...
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ASP.NET MVC Ajax Error handling

How do I handle exceptions thrown in a controller when jquery ajax calls an action? 6 Answers ...
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What is the difference between exit(0) and exit(1) in C?

...However, it's usage is non-portable. Note that the C standard defines EXIT_SUCCESS and EXIT_FAILURE to return termination status from a C program. 0 and EXIT_SUCCESS are the values specified by the standard to indicate successful termination, however, only EXIT_FAILURE is the standard value for re...
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How to configure Ruby on Rails with no database?

It would be convenient to use Ruby on Rails for a small website project that has no current need for a database. I know I could create an empty database in MySQL and go from there, but does anyone know a better way to run Rails without a database? ...
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What's the syntax for mod in java

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Add vertical whitespace using Twitter Bootstrap?

What's the best way to add vertical whitespace using Twitter's Bootstrap? 13 Answers ...
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How do I copy an entire directory of files into an existing directory using Python?

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