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MySQL: how to get the difference between two timestamps in seconds
...and the TIME_TO_SEC() functions as follows:
SELECT TIME_TO_SEC(TIMEDIFF('2010-08-20 12:01:00', '2010-08-20 12:00:00')) diff;
+------+
| diff |
+------+
| 60 |
+------+
1 row in set (0.00 sec)
You could also use the UNIX_TIMESTAMP() function as @Amber suggested in an other answer:
SELECT UNIX_T...
Undefined method 'task' using Rake 0.9.0
...ant solution. But if you have to use the --pre version of Rake it might be all right to use this quick hack.
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Why can't I declare static methods in an interface?
...don't know which implementing class is the correct definition.
Java could allow the latter; and in fact, starting in Java 8, it does!
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How do I parse command line arguments in Java?
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edited Sep 29 '14 at 19:01
Roger Fan
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answered Jul 26 '10 at ...
How to delete the last n commits on Github and locally?
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DherikDherik
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How to insert text at beginning of a multi-line selection in vi/Vim
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@HKK, normally one uses the forward slash character / as a delimeter for the search and replace command. In this case we are inserting a forward slash as part of the search and replace so we use an alternative delimeter, namely the ex...
Solving “Who owns the Zebra” programmatically?
...ution in Python based on constraint-programming:
from constraint import AllDifferentConstraint, InSetConstraint, Problem
# variables
colors = "blue red green white yellow".split()
nationalities = "Norwegian German Dane Swede English".split()
pets = "birds dog cats horse zebra".sp...
How do I use a Boolean in Python?
Does Python actually contain a Boolean value? I know that you can do:
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jquery .html() vs .append()
...y's methods, this is what happens:
A temporary element is created, let's call it x. x's innerHTML is set to the string of HTML that you've passed. Then jQuery will transfer each of the produced nodes (that is, x's childNodes) over to a newly created document fragment, which it will then cache for n...
How do I do top 1 in Oracle?
...t. And Patrick, good point I think the syntax is incorrect on that. It really should be a keep over (dense_rank() last... )
– mcpeterson
Aug 11 '10 at 16:10
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