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How to alter a column's data type in a PostgreSQL table?
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See documentation here: http://www.postgresql.org/docs/current/interactive/sql-altertable.html
ALTER TABLE tbl_name ALTER COLUMN col_name TYPE varchar (11);
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Run automatically program on startup under linux ubuntu [closed]
...filename must be an init style script. A good template was also provided - https://github.com/fhd/init-script-template.
Another link to another article just to avoid possible link rot (although it would be saddening if GitHub died) - http://www.linux.com/learn/tutorials/442412-managing-linux-daemons...
How to expand a list to function arguments in Python [duplicate]
...lues) Read the Python doc unpackaging argument lists.
Also, do read this: http://www.saltycrane.com/blog/2008/01/how-to-use-args-and-kwargs-in-python/
def foo(x,y,z):
return "%d, %d, %d" % (x,y,z)
values = [1,2,3]
# the solution.
foo(*values)
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Get the last 4 characters of a string [duplicate]
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str = "aaaaabbbb"
newstr = str[-4:]
See : http://codepad.org/S3zjnKoD
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jQuery .on function for future elements, as .live is deprecated [duplicate]
...he DOM, you could do something like $('table#id').on('click', 'tr', ...)
http://api.jquery.com/live/
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Facebook Access Token for Pages
...ermanent access to a page (even when you / the app owner are logged out):
http://developers.facebook.com/docs/opengraph/using-app-tokens/
"An App Access Token does not expire unless you refresh the application secret through your app settings."
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Inserting a string into a list without getting split into characters
...icking to the method you are using to insert it, use
list[:0] = ['foo']
http://docs.python.org/release/2.6.6/library/stdtypes.html#mutable-sequence-types
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Have a variable in images path in Sass?
...d for an answer to the same question, but think I found a better solution: http://blog.grayghostvisuals.com/compass/image-url/
Basically, you can set your image path in config.rb and you use the image-url() helper
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“Cannot send session cache limiter - headers already sent” [duplicate]
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"Headers already sent" means that your PHP script already sent the HTTP headers, and as such it can't make modifications to them now.
Check that you don't send ANY content before calling session_start. Better yet, just make session_start the first thing you do in your PHP file (so put it at...
Correct way to check if a type is Nullable [duplicate]
...() == typeof(Nullable<>)) {…}
explained at the below MSDN link:
http://msdn.microsoft.com/en-us/library/ms366789.aspx
Moreover, there is a similar discussion at this SO QA:
How to check if an object is nullable?
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