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What is the benefit of using “SET XACT_ABORT ON” in a stored procedure?
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234
SET XACT_ABORT ON instructs SQL Server to rollback the entire transaction and abort the batch w...
cartesian product in pandas
...import DataFrame, merge
df1 = DataFrame({'key':[1,1], 'col1':[1,2],'col2':[3,4]})
df2 = DataFrame({'key':[1,1], 'col3':[5,6]})
merge(df1, df2,on='key')[['col1', 'col2', 'col3']]
Output:
col1 col2 col3
0 1 3 5
1 1 3 6
2 2 4 5
3 2 4 6
See here...
T-SQL - function with default parameters
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you have to call it like this
SELECT dbo.CheckIfSFExists(23, default)
From Technet:
When a parameter of the function has a default value, the keyword
DEFAULT must be specified when the function is called in order to
retrieve the default value. This behaviour is different f...
How do you track record relations in NoSQL?
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Bill KarwinBill Karwin
437k7777 gold badges585585 silver badges740740 bronze badges
...
A html space is showing as %2520 instead of %20
...th by converting them to the proper forward slash.
In addition, there are 3 slashes after the protocol name, since you are silently referring to the current machine instead of a remote host ( the full unabbreviated path would be file://localhost/c:/my%20path/my%file.html ), but again most clients w...
Django select only rows with duplicate field values
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193
Try:
from django.db.models import Count
Literal.objects.values('name')
.annotate...
What is the difference between a regular string and a verbatim string?
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phuclv
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answered Jul 22 '10 at 18:19
alc6379alc637...
How to get indices of a sorted array in Python
...gt;> import numpy
>>> numpy.argsort(myList)
array([0, 1, 2, 4, 3])
http://docs.scipy.org/doc/numpy/reference/generated/numpy.argsort.html
This returns the arguments that would sort the array or list.
share
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Split array into chunks
... |
edited Jan 2 '19 at 16:32
answered Dec 13 '11 at 20:28
B...
What is Cache-Control: private?
...e a Last-Modified date in the response:
Last-Modified: Tue, 16 Oct 2012 03:13:38 GMT
Because the browser knows the date the file was modified, it can perform a conditional request. It will ask the server for the file, but instruct the server to only send the file if it has been modified since 20...