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How to check if mysql database exists
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First one good. Second one not so much. You might not have database creation privilege.
– O. Jones
Dec 16 '09 at 20:18
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What's the need of array with zero elements?
...ne):
As a special case, the last element of a structure with more than one named member may
have an incomplete array type; this is called a flexible array member. In most situations,
the flexible array member is ignored. In particular, the size of the structure is as if the
flexible arr...
Understanding the map function
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map doesn't relate to a Cartesian product at all, although I imagine someone well versed in functional programming could come up with some impossible to understand way of generating a one using map.
map in Python 3 is equivalent to this:
def map(func, iterable):
for i in iterable:
y...
How to find a deleted file in the project commit history?
...-file>
Note the caret symbol (^), which gets the checkout prior to the one identified, because at the moment of <SHA> commit the file is deleted, we need to look at the previous commit to get the deleted file's contents
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How to calculate the difference between two dates using PHP?
...n $result;
}
/**
* Accepts two unix timestamps.
*/
function _date_diff($one, $two)
{
$invert = false;
if ($one > $two) {
list($one, $two) = array($two, $one);
$invert = true;
}
$key = array("y", "m", "d", "h", "i", "s");
$a = array_combine($key, array_map("...
Running a command as Administrator using PowerShell?
... The only syntax that worked for me is in the original post, not the one by G.Lombard nor anjdreas
– Nicolas Mommaerts
Jan 22 '15 at 11:18
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Regular expression to match numbers with or without commas and decimals in text
...t. I've found a few example regex's, which almost solve the problem, but none are perfect yet. The problem I have is that the numbers in my text may or may not have decimals and commas. For example:
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Why is it not advisable to have the database and web server on the same machine?
... server should be on separate machines. Is this just to make sure that if one server is compromised, both systems aren't accessible? Do the security concerns outweigh the complexity of two servers (extra cost, dedicated network connection between the two, more maintenance, etc.), especially for a ...
Django admin: how to sort by one of the custom list_display fields that has no database field
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This is better answer compared to the accepted one. The issue I ran into applying the accepted one is when you search something along with that updated queryset at the admin level, it takes too much time and also comes up with wrong count for the results it found.
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
... was driving me crazy!
Put all your hosts file entries for localhost into one line like so:
127.0.0.1 localhost myproject.dev myotherproject.dev
::1 localhost
fe80::1%lo0 localhost
Worked like a charm for me. Seems like a bug in Lion.
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