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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...
Remove border from IFrame
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1154
Add the frameBorder attribute (note the capital ‘B’).
So it would look like:
<iframe...
Vim: Replacing a line with another one yanked before
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How do I add custom field to Python log format string?
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126
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Many of the answers here are out of date for 2015 (although the initially accepted one from Daniel Roseman is not).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...
Automatic popping up keyboard on start Activity
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How can I use “.” as the delimiter with String.split() in java [duplicate]
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edited Jul 31 '16 at 3:31
answered May 3 '10 at 3:18
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How to view file diff in git before commit
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edited Jun 23 '18 at 13:09
Thunder
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an...
Semaphore vs. Monitors - what's the difference?
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answered Sep 7 '11 at 15:32
Anthony WilliamsAnthony Williams
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