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MySQL “Group By” and “Order By”
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A simple solution is to wrap the query into a subselect with the ORDER statement first and applying the GROUP BY later:
SELECT * FROM (
SELECT `timestamp`, `fromEmail`, `subject`
FROM `incomingEmails`
ORDER BY `timestamp` DESC
) AS tmp_table GROUP BY LOWER(`fromEmail`)
This ...
Best programming aids for a quadriplegic programmer
...re simply too many situations which require you to hover with the mouse in order to get to the underlying commands. This is a great shame. Nevertheless there are some really good Firefox plugins to help browsing without a mouse.
Mouseless browsing: https://addons.mozilla.org/en-us/firefox/addon/m...
Get type of all variables
...te: character
typeof(5 && 4) #doubles are coerced by order of && logical
typeof(8 < 'foobar') #string and double is coerced logical
typeof(list(4, T)[[1]]) #a list retains type at every index: double
typeof(list(4, T)[[2]]) #a list retains type at...
Convert a byte array to integer in Java and vice versa
...ngth; i++)
System.out.format("%02x\n",output[i]);
}
}
In order to understand things you can read this WP article: http://en.wikipedia.org/wiki/Endianness
The above source code will output 34 12 78 56 bc 9a. The first 2 bytes (34 12) represent the first integer, etc. The above sour...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...ified stamp and row version on my entities, so I was getting them first in order to compare with the inbound headers. Of course, this loaded and tracked the entity that was subsequently being updated.
The fix was simply to change the repository from newing-up a context once in the constructor to ha...
Wildcards in a Windows hosts file
...ions Indexes FollowSymLinks Includes ExecCGI
AllowOverride All
Order allow,deny
Allow from all
</Directory>
<VirtualHost *:80>
VirtualDocumentRoot c:/xampp/sites/%-1/%-2+/
</VirtualHost>
This allows me to add an entry like:
127.0.0.1 test.de...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
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Why should a Java class implement comparable?
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Comparable defines a natural ordering. What this means is that you're defining it when one object should be considered "less than" or "greater than".
Suppose you have a bunch of integers and you want to sort them. That's pretty easy, just put them in a...
Rails: Default sort order for a rails model?
I would like to specify a default sort order in my model.
3 Answers
3
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How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...of the View when first called and reuses that Position in further calls in order to place the View accordingly. This overwrites the Autolayout Code in that sense, that it takes place after [super layoutSubviews]; which contains autolayout Code.
Like that there is no longer any need to avoid Autolay...