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How to implement a unique index on two columns in rails
...indexed. So my question is if I just can remove the indexes who were just for one column or if I have to use all three indexes:
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How can I see the current value of my $PATH variable on OS X?
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You need to use the command echo $PATH to display the PATH variable or you can just execute set or env to display all of your environment variables.
By typing $PATH you tried to run your PATH variable contents as a command name.
Bash displayed the contents of your path any way. Based on yo...
Preferred order of writing latitude & longitude tuples in GIS services
...ling with GIS source code you often need to write latitude and longitude coordinate tuples.
9 Answers
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Capture Stored Procedure print output in .NET
Is it possible to capture print output from a T-SQL stored procedure in .NET?
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how to rotate a bitmap 90 degrees
...rix.postRotate(90);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmapOrg, width, height, true);
Bitmap rotatedBitmap = Bitmap.createBitmap(scaledBitmap, 0, 0, scaledBitmap.getWidth(), scaledBitmap.getHeight(), matrix, true);
Then you can use the rotated image to set in your imageview throug...
Twitter Bootstrap vs jQuery UI? [closed]
I've been using jQuery UI for some basic page enhancements. Button and input styling and modal dialog boxes. Now I've come across Bootstrap and it looks pretty good.
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How do I disconnect all other users in tmux?
...e current client if bound to a key, the client specified
with -t, or all clients currently attached to the session speci-
fied by -s. The -a option kills all but the client given with
-t. If -P is given, send SIGHUP to the parent process of the
client, typically...
How to search and replace globally, starting from the cursor position and wrapping around the end of
When I search with the / Normal-mode command:
6 Answers
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Raise warning in Python without interrupting program
...g, you should be using warnings module. By raising it you're generating error, rather than warning.
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Does .asSet(…) exist in any API?
I'm looking for a very simple way to create a Set.
10 Answers
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