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Storing time-series data, relational or non?
...r description, the actual PK is (Device, Metric, DateTime). (Please don't call it TimeStamp, that means something else, but that is a minor issue.) The uniqueness of the row is identified by:
(Device, Metric, DateTime)
The Id column does nothing, it is totally and completely redundant.
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I am getting Failed to load resource: net::ERR_BLOCKED_BY_CLIENT with Google chrome
...Incognito tab will usually stop extensions running (unless you have specifically told Chrome which ones to run in Incognito).
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Understanding prototypal inheritance in JavaScript
...efficient because usually you need a function only once per type.
The new call in javascript automatically sets the constructor in the prototype. If you are overwriting the prototype so you have to set the constructor manually.
Inheritance in javascript has nothing like super. So if you have a sub...
Stop handler.postDelayed()
I call multiple Handlers by new Handler().postDelayed(new Runnable().....
How can I stop it when I click on back?
4 Answer...
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...nimated:YES];
Note to always use only (reloadDataAnimated:YES/NO)
(dont call [self.tableView reloadData] directly)
This doesn't use the hacky solution with setting height to 0 and allows you to animate the change and hide whole sections
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Remove last item from array
... This works great, just make sure you notice that this is a call to .slice() and not to .splice().
– Brian Hasden
Oct 17 '14 at 20:44
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Is R's apply family more than syntactic sugar?
...s can safely be used in parallel because changes are local to the function call (unless you try to use assign or <<-, in which case you can introduce side effects). Needless to say, it's critical to be careful about local vs. global variables, especially when dealing with parallel execution.
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Paging with Oracle
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This is the correct answer should you want to dynamically change your order.
– chakeda
Aug 30 '18 at 20:16
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Call a function with argument list in python
I'm trying to call a function inside another function in python, but can't find the right syntax. What I want to do is something like this:
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Downloading all maven dependencies to a directory NOT in repository?
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@Raghuram Technically you end up with all (resolved) artifacts in "target/dependencies". Further, there is the potential problem of name collisions as the "groupId" coordinate of a dependency is ignored. In other words, "dependency:copy-depe...