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How to Select Every Row Where Column Value is NOT Distinct
...s] WHERE [EmailAddress] IN
(SELECT [EmailAddress] FROM [Customers] GROUP BY [EmailAddress] HAVING COUNT(*) > 1)
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What is the difference between Strategy design pattern and State design pattern?
...s are passed to the context object as parameters, while States are created by the context object itself.
Strategies only handle a single, specific task, while States provide the underlying implementation for everything (or most everything) the context object does.
A "classic" implementation would ...
Your branch is ahead of 'origin/master' by 3 commits
...hich returned Everything up-to-date, after that the message of being ahead by x commits went away.
– Will B.
Nov 11 '14 at 16:28
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CSS selector by inline style attribute
Is there a CSS selector to select this element by its inline style attribute value?
2 Answers
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What is the id( ) function used for?
...responding C object.
If yes, why doesn't the number increase instantly by the size of the data type (I assume that it would be int)?
Because a list is not an array, and a list element is a reference, not an object.
When do we really use id( ) function?
Hardly ever. id() (or its equivalen...
unix diff side-to-side results?
...
From man diff, you can use -y to do side-by-side.
-y, --side-by-side
output in two columns
Hence, say:
diff -y /tmp/test1 /tmp/test2
Test
$ cat a $ cat b
hello hello
my name my name
is me ...
How do you get a directory listing sorted by creation date in python?
What is the best way to get a list of all files in a directory, sorted by date [created | modified], using python, on a windows machine?
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Is errno thread-safe?
...a thread
might end up checking errno after it
has already been updated by another
thread.
To circumvent the resulting
nondeterminism, POSIX.1c redefines
errno as a service that can access the
per-thread error number as follows
(ISO/IEC 9945:1-1996, §2.4):
Some functions may ...
How do I select an element in jQuery by using a variable for the ID?
...
Doing $('body').find(); is not necessary when looking up by ID; there is no performance gain.
Please also note that having an ID that starts with a number is not valid HTML:
ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, di...
Removing Data From ElasticSearch
...ly remove the data itself. The other stuff I've seen points to the Delete by Query feature. However, I'm not even sure what to query on. I know my indexes. Essentially, I'd like to figure out how to do a
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