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Get records with max value for each group of grouped SQL results
..., age desc, Person) x
group by `Group`
This works because in mysql you're allowed to not aggregate non-group-by columns, in which case mysql just returns the first row. The solution is to first order the data such that for each group the row you want is first, then group by the columns you want the...
How to send an email using PHP?
...d also use PHPMailer class at https://github.com/PHPMailer/PHPMailer .
It allows you to use the mail function or use an smtp server transparently. It also handles HTML based emails and attachments so you don't have to write your own implementation.
The class is stable and it is used by many other ...
xcodebuild says does not contain scheme
...lt behavior of Schemes is to keep schemes 'private' until they are specifically marked as shared. In the case of a command-line initiated build, the Xcode UI never runs and the xcoderun tool doesn't have its own cache of Schemes to work with. The goal is to generate, share, and commit the scheme y...
Best exception for an invalid generic type argument
...ere's a way in which NotSupportedException is obviously good enough, especially given its common-sense meaning. Having said that, I'm not sure if it's just right.
Given the purpose of Unconstrained Melody ...
There are various useful things that can be done with generic
methods/classes where ...
How to export revision history from mercurial or git to cvs?
...en we finish or maybe every once in a while we want to commit our code and all of our revision history to cvs. We don't have write access to the project's cvs repo so we can't commit very frequently. What tool can we use to export our revision history to cvs? Currently we were thinking of using git ...
UIView bottom border?
...nges (device rotation, Auto Layout, etc.) then your CALayer won't automatically adjust itself. You're going to have to set that up yourself. Whereas using drawRect can handle the change automatically.
– Womble
Jul 3 '15 at 4:02
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Core pool size vs maximum pool size in ThreadPoolExecutor
...When the queue is full new threads will be
created up to maxPoolSize. Once all the threads are in use and the
queue is full tasks will be rejected. As the queue reduces, so does
the number of active threads.
share
...
CSS selector by inline style attribute
...will stop matching values that don't contain the space, unless you include all the permutations, ad nauseum. But if you're working with a document in which the inline style declarations themselves are unlikely to change at all, you should be fine.
Note also that this is not at all selecting element...
Specifying colClasses in the read.csv
... the read.csv function in R. In my data, the first column "time" is basically a character vector while the rest of the columns are numeric.
...
Found conflicts between different versions of the same dependent assembly that could not be resolved
...s say this, they don't make it explicit, so I will....
On VS2013.2, to actually trigger the emission of the cited information, you need to not read the message, which says:
C:\Program Files (x86)\MSBuild\12.0\bin\Microsoft.Common.CurrentVersion.targets(1697,5): warning MSB3277: Found conflicts betw...