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Unknown Column In Where Clause
.... The alias is used
as the expression's column name and
can be used in GROUP BY, ORDER BY, or
HAVING clauses."
(...)
It is not permissible to refer to a column alias in a WHERE clause,
because the column value might not yet be determined when the WHERE
clause is executed. See Section...
CSS: fixed position on x-axis but not y?
...called nucleotides. Each nucleotide contains a 5-carbon sugar, a phosphate group and a nitrogen base. There are four different variations of the nitrogen base group, responsible for all of the variation between two different DNA strands. The four different variations are called adenine, guanine, cyt...
How to sort my paws?
...ould simply sort the impacts by initial contact time and use a modulo 4 to group them by paw.
However, even when everything is "normal", this doesn't work. This is due to the trapezoid-like shape of the pattern. A hind paw spatially falls behind the previous front paw.
Therefore, the hind paw...
Is it better to call ToList() or ToArray() in LINQ queries?
...g fact that I came across is that for correlated queries caused by using a group defined through a group join in your projection causes Linq to SQL to add another sub-query to retrieve the count for that group. I'm assuming that this means in these cases the size of the collection will be known befo...
Brew update failed: untracked working tree files would be overwritten by merge
...
I was able to fix this on my machine by adding admin group write (and setgid bit) permission at these paths:
sudo chmod -R g+ws /usr/local /Library/Caches/Homebrew
The s sets the group id on execution so that the write permissions aren't lost the next time a different admin ...
How to send a stacktrace to log4j?
...extUtils.getStacktrace(e);
logger.error("error occurred for usename {} and group {}, details: {}",username, group, stacktrace);
}
This will print parametrized message and the stacktrace at the end the same way it does for method: logger.error("error: ", e);
I actually wrote an open source library...
No route matches [GET] /assets
...gem which enables this setting by default. Place the gem into a production group in your Gemfile, like this:
group :production do
gem 'rails_12factor'
end
share
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How do you display JavaScript datetime in 12 hour AM/PM format?
...e(/([\d]+:[\d]{2})(:[\d]{2})(.*)/, "$1$3"))
This creates 3 matching groups:
([\d]+:[\d]{2}) - Hour:Minute
(:[\d]{2}) - Seconds
(.*) - the space and period (Period is the official name for AM/PM)
Then it displays the 1st and 3rd groups.
WARNING: toLocaleTimeString() may behave differently...
SQL MAX of multiple columns?
...( Date1, Date2,
Date3 ) ) as u
GROUP BY number ,
cost
GO
Solution 2 (Sub query per row)
SELECT number ,
( SELECT MAX(dDate) maxDate
FROM ( SELECT d.date1 AS dDate
UNION
S...
Try/Catch block in PHP not catching Exception
....2.14 (cli) (built: Aug 12 2010 17:32:30)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
with eAccelerator v0.9.5.1, Copyright (c) 2004-2006 eAccelerator, by eAccelerator
The solution is to either disable eAccelerator or update it. I tried b...