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How can I select rows with most recent timestamp for each key value?
...s, here's another possible solution:
SELECT sensorID,timestamp,sensorField1,sensorField2
FROM sensorTable s1
WHERE timestamp = (SELECT MAX(timestamp) FROM sensorTable s2 WHERE s1.sensorID = s2.sensorID)
ORDER BY sensorID, timestamp;
Pretty self-explaining I think, but here's more info if you wis...
How to detect when a UIScrollView has finished scrolling
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How do I add custom field to Python log format string?
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You could use a LoggerAdapter so you don't have to pass the extra info with every logging call...
Why use pip over easy_install? [closed]
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Many of the answers here are out of date for 2015 (although the initially accepted one from Daniel Roseman is not). Here's the current state of things:
Binary packages are now distributed as wheels (.whl files)—not just on PyPI, but in third-party repositories like Ch...
What is the difference between Cloud, Grid and Cluster? [closed]
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How can I make an EXE file from a Python program? [duplicate]
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edited Jun 22 '19 at 11:08
Smart Manoj
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In VIM, how do I break one really long line into multiple lines?
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