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When should I use semicolons in SQL Server?
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Seems they're basically encouraging use of the semicolon in general, by requiring it before all new statement types that have been introduced in recent years. (MERGE too for example). As mentioned in other answers, in the ANSI standard they a...
Convert seconds to Hour:Minute:Second
...presents the amount of hours in a single day. So if you have 90000 seconds and you'll use H on it the result will be 01 (first hour of a next day). NOT 25 - there are only 24 hours in a day.
– MarcinWolny
Jun 20 '13 at 10:35
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Why were pandas merges in python faster than data.table merges in R in 2012?
... may have discovered a known issue in data.table when the number of unique strings (levels) is large: 10,000.
Does Rprof() reveal most of the time spent in the call sortedmatch(levels(i[[lc]]), levels(x[[rc]])? This isn't really the join itself (the algorithm), but a preliminary step.
Recent effo...
Array versus List: When to use which?
...imensional; where-as you have have rectangular (etc) arrays like int[,] or string[,,] - but there are other ways of modelling such data (if you need) in an object model.
See also:
How/When to abandon the use of Arrays in c#.net?
Arrays, What's the point?
That said, I make a lot of use of arrays...
Case insensitive access for generic dictionary
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There's no way to specify a StringComparer at the point where you try to get a value. If you think about it, "foo".GetHashCode() and "FOO".GetHashCode() are totally different so there's no reasonable way you could implement a case-insensitive get on a c...
join list of lists in python [duplicate]
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@ZachEstela, I'm happy to see someone call this unpythonic. It seems like many techniques others like to call pythonic are not easily understood at first glance. Readability is one of the things that makes Python attractive to me. This solution is cool, and pro...
What's the correct way to sort Python `import x` and `from x import y` statements?
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Imports are generally sorted alphabetically and described in various places beside PEP 8.
Alphabetically sorted modules are quicker to read and searchable. After all python is all about readability.
Also It is easier to verify that something...
How to get current time with jQuery
...they will get other results from getHours. This also holds true for the .toString() method. Controlling the time zone in javascript is tricky (you have to calculate the offset between your and the desired time zone and modify the date accordingly). So as mentioned in another answer, using moment.js ...
How to get the cuda version?
Is there any quick command or script to check for the version of CUDA installed?
19 Answers
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What is the difference between PS1 and PROMPT_COMMAND
...able is set inside the PROMPT_COMMAND, which itself is a super complicated string that is evaluated at runtime by bash. It works, but it's more complicated than it needs to be. To be fair I wrote that PROMPT_COMMAND for myself about 10 years ago and it worked and didn't think too much about it.
For...