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SQL WHERE condition is not equal to?
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You can do like this
DELETE FROM table WHERE id NOT IN ( 2 )
OR
DELETE FROM table WHERE id <> 2
As @Frank Schmitt noted, you might want to be careful about the NULL values too. If you want to delete everything which is...
What is the pythonic way to avoid default parameters that are empty lists?
...king_list = []
working_list.append("a")
print(working_list)
The docs say you should use None as the default and explicitly test for it in the body of the function.
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Numpy: find first index of value fast
... interested in the following answers because they scan the whole array and don't stop when they find the first occurrence:
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What is the difference between a field and a property?
...nts out that Properties are not required to encapsulate fields, they could do a calculation on other fields, or serve other purposes.
@GSS points out that you can also do other logic, such as validation, when a property is accessed, another useful feature.
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iOS: how to perform a HTTP POST request?
...a separate thread to avoid blocking the UI.
Asynchronously: (void)start
Don't forget to set your NSURLConnection's delegate to handle the connection as follows:
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[self.data setLength:0];
}
- (void...
Convert string with comma to integer
... @michealKohi can you tell me Why delete() is much faster than doing the same in gsub which accepts regex, I have always thought regex way is faster. I have ran Benchmark on both on its a huge difference in execution time.
– Abhinay
Aug 29 '14 at 11...
Permission denied for relation
...to grant or revoke connect privileges. This allows you to specify who may do stuff in the database if they have sufficient other permissions.
You want instead:
GRANT ALL PRIVILEGES ON TABLE side_adzone TO jerry;
This will take care of this issue.
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Nearest neighbors in high-dimensional data?
... now 21 dimensions and before I proceed further, because I am not from the domain of Machine Learning nor Math, I am beginning to ask myself some fundamental questions:
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How to determine if a list of polygon points are in clockwise order?
Having a list of points, how do I find if they are in clockwise order?
23 Answers
23
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Wrap long lines in Python [duplicate]
How do I wrap long lines in Python without sacrificing indentation?
6 Answers
6
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