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MySQL order by before group by
...rect author and post is returned every time.
As a side note, while MySQL allows you to use an ORDER BY in a subquery and allows you to apply a GROUP BY to not every column in the SELECT list this behavior is not allowed in other databases including SQL Server.
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How to ignore the first line of data when processing CSV data?
...on to skip over the first row only when necessary:
import csv
with open('all16.csv', 'r', newline='') as file:
has_header = csv.Sniffer().has_header(file.read(1024))
file.seek(0) # Rewind.
reader = csv.reader(file)
if has_header:
next(reader) # Skip header row.
column...
java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...n Grails.
– BalusC
Sep 14 '13 at 22:32
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How do I remove packages installed with Python's easy_install?
Python's easy_install makes installing new packages extremely convenient. However, as far as I can tell, it doesn't implement the other common features of a dependency manager - listing and removing installed packages.
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Comparison between Mockito vs JMockit - why is Mockito voted better than JMockit? [closed]
...ired 2 years to go from RC1 to RC2, and then another 2 years before it actually got released.
Regarding Proxy & CGLIB vs instrumentation:
(EasyMock and jMock) are based on java.lang.reflect.Proxy,
which requires an interface to be
implemented. Additionally, they
support the creation o...
Tags for Emacs: Relationship between etags, ebrowse, cscope, GNU Global and exuberant ctags
...ndex (a.k.a. tag/TAGS) file of language objects found in source files that allows these items to be quickly and easily located by a text editor or other utility. A tag signifies a language object for which an index entry is available (or, alternatively, the index entry created for that object). The ...
What's the best way to put a c-struct in an NSArray?
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@Joe Blow @Catfish_Man It actually copies the structure p, not a pointer to it. The @encode directive provides all the information necessary about how big the structure is. When you release the NSValue (or when the array does), its copy of the structure i...
adb not finding my device / phone (MacOS X)
...
32
If you are using following devices:
Samsung S3 GT-I9305 (Android 4.1.2)
Mac OS 10.6.8
Do follo...
Activity has leaked window that was originally added
... so the 'real' exception was a little earlier in the log
Answer 3
Call dismiss() on the Dialog instance you created before exiting your
Activity, e.g. in onPause() or onDestroy()
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What part of Hindley-Milner do you not understand?
...re are multiple expressions in [above], then consider them anded together; all of the [above] must be true in order to guarantee the [below].
: means has type
∈ means is in. (Likewise ∉ means "is not in".)
Γ is usually used to refer to an environment or context; in this case it can be thought o...