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How do I temporarily disable triggers in PostgreSQL?
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answered Sep 10 '13 at 2:49
zyzofzyzof
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How do I create directory if it doesn't exist to create a file?
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400
To Create
(new FileInfo(filePath)).Directory.Create() Before writing to the file.
....Or, If...
Should I use AppDomain.CurrentDomain.BaseDirectory or System.Environment.CurrentDirectory?
...amberlain
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answered Mar 23 '09 at 19:24
JaredParJaredPar
648k133133 g...
updating table rows in postgres using subquery
Using postgres 8.4, My goal is to update existing table:
6 Answers
6
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How to define two fields “unique” as couple
...ber', max_length=100)
comments = models.TextField('Comments', max_length=4000, blank=True)
class Meta:
unique_together = ('journal_id', 'volume_number',)
share
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improve this answer
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
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edited Sep 3 '14 at 16:42
answered Oct 2 '10 at 15:32
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What is the default value for enum variable?
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384
It is whatever member of the enumeration represents the value 0. Specifically, from the document...
How to validate an Email in PHP?
...d suffice.
Update 1: As pointed out by @binaryLV:
PHP 5.3.3 and 5.2.14 had a bug related to
FILTER_VALIDATE_EMAIL, which resulted in segfault when validating
large values. Simple and safe workaround for this is using strlen()
before filter_var(). I'm not sure about 5.3.4 final, but it is...
Chrome Extension Message passing: response not sent
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348
From the documentation for chrome.runtime.onMessage.addListener:
This function becomes inva...
pandas GroupBy columns with NaN (missing) values
...ng the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fillna(-1).groupby('b').sum()
Out[12]:
a
b
-1 2
4 1
6 3
That said, this feels pretty awful hack... perhaps there should be an option to include NaN in groupby (see this github i...