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Get records with max value for each group of grouped SQL results
How do you get the rows that contain the max value for each grouped set?
17 Answers
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from list of integers, get number closest to a given value
Given a list of integers, I want to find which number is the closest to a number I give in input:
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Count number of occurrences of a pattern in a file (even on same line)
When searching for number of occurrences of a string in a file, I generally use:
5 Answers
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FTP/SFTP access to an Amazon S3 Bucket [closed]
Is there a way to connect to an Amazon S3 bucket with FTP or SFTP rather than the built-in Amazon file transfer interface in the AWS console? Seems odd that this isn't a readily available option.
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Graphviz: How to go from .dot to a graph?
I can't seem to figure this out. I have a .dot file, which is valid according to the syntax. How do I use graphviz to convert this into an image?
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if (key in object) or if(object.hasOwnProperty(key)
Do the following two statements produce the same output? Is there any reason to prefer one way to the other?
7 Answers
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Why does ++[[]][+[]]+[+[]] return the string “10”?
This is valid and returns the string "10" in JavaScript ( more examples here ):
9 Answers
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If strings are immutable in .NET, then why does Substring take O(n) time?
Given that strings are immutable in .NET, I'm wondering why they have been designed such that string.Substring() takes O( substring.Length ) time, instead of O(1) ?
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How do you log server errors on django sites
So, when playing with the development I can just set settings.DEBUG to True and if an error occures I can see it nicely formatted, with good stack trace and request information.
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