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PostgreSQL - fetch the row which has the Max value for a column
I'm dealing with a Postgres table (called "lives") that contains records with columns for time_stamp, usr_id, transaction_id, and lives_remaining. I need a query that will give me the most recent lives_remaining total for each usr_id
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socket.shutdown vs socket.close
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Here's one explanation:
Once a socket is no longer required,
the calling program can discard the
socket by applying a close subroutine
to the socket descriptor. If a
reliable delivery socket has data
associated with it when a close takes
place, the system continues to attempt
da...
How to enable Bootstrap tooltip on disabled button?
... Just a side note, this only works for IE in 11 or higher. Pretty much all other modern browsers have supported it for a while. See: caniuse.com/#feat=pointer-events
– Neil Monroe
Aug 14 '14 at 22:26
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Differences between distribute, distutils, setuptools and distutils2?
...e Foundation just adds credence to it. The Project Summaries page is especially relevant here.
Summary of tools:
Here's a summary of the Python packaging landscape:
Supported tools:
distutils is still the standard tool for packaging in Python. It is included in the standard library (Python 2 an...
How do you find out the caller function in JavaScript?
Is there a way to find out the call stack?
31 Answers
31
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How can I detect if a file is binary (non-text) in python?
...446549/… The answer based on an activestate recipe looks good to me, it allows a small proportion of non-printable characters (but no \0, for some reason).
– Sam Watkins
Mar 14 '13 at 2:57
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Hidden features of Windows batch files
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Line continuation:
call C:\WINDOWS\system32\ntbackup.exe ^
backup ^
/V:yes ^
/R:no ^
/RS:no ^
/HC:off ^
/M normal ^
/L:s ^
@daily.bks ^
/F daily.bkf
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How do I hide an element when printing a web page?
...You can even have multiple screen sections for different resolutions. Basically if you just add what's given in this answer, it will not work. Believe me I've tried. So how did this get 69 upvotes?
– Codeguy007
Nov 16 '12 at 21:39
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I lost my .keystore file?
...ed. So, there is no other way: you should issue another application.
Generally, the only advise that exists on keystores: "always back it up!"
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How to loop through array in jQuery?
... of this within the body of the loop, no unnecessary overhead of function calls (e.g., in theory faster, though in fact you'd have to have so many elements that the odds are you'd have other problems; details).
ES5's forEach:
As of ECMAScript5, arrays have a forEach function on them which makes it...