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Using module 'subprocess' with timeout
...in the second one the
process was terminated (return code -15).
I haven't tested in windows; but, aside from updating the example
command, I think it should work since I haven't found in the
documentation anything that says that thread.join or process.terminate
is not supported.
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Does MySQL ignore null values on unique constraints?
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My testing seems to show that the Java Derby database v10.13.1.1. similarly allows only one null in a column with a unique index.
– chrisinmtown
Mar 30 '18 at 14:34
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How to check iOS version?
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I just tested putting this in my .pch file and it works great (building with Xcode 5 at least)
– whyoz
Oct 15 '13 at 1:16
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How can I auto-elevate my batch file, so that it requests from UAC administrator rights if required?
...AC dialog and asks you for the administrator account and password.
I have tested it with Windows 7, 8, 8.1, 10 and with Windows XP - it works fine for all.
The advantage is, after the start point you can place anything that requires system administrator privileges, for example, if you intend to r...
What happens if I define a 0-size array in C/C++?
... C++ Builder 2009 also correctly gives an error: [BCC32 Error] test.c(3): E2021 Array must have at least one element
– Lundin
Mar 15 '12 at 15:43
1
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How do I use NSTimer?
...ncy.
adding one to hour component works just fine, no need for a midnight test (link)
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edited May 23 '17 at 12:32
Community...
In Python, when to use a Dictionary, List or Set?
...of distinct hashable objects. A set is commonly used to include membership testing, removing duplicates from a sequence, and computing mathematical operations such as intersection, union, difference, and symmetric difference.
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Javascript: How to detect if browser window is scrolled to bottom?
...Offset) >= document.body.offsetHeight - 2
I didn't have the chance to test it further, if someone can comment about this specific issue it will be great.
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improve this answer
|...
How important is the order of columns in indexes?
...tioned in one Answer.
So, what order should be used?
Start with column(s) tested with =, in any order.
Then tack on one range column.
For example, the very-low selectivity column must come first in this:
WHERE deleted = 0 AND the_datetime > NOW() - INTERVAL 7 DAY
INDEX(deleted, the_datetime)
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Clone private git repo with dockerfile
...;"
COPY --from=clone /repo /repo
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More recently, BuildKit has been testing some experimental features that allow you to pass an ssh key in as a mount that never gets written to the image:
# syntax=docker/dockerfile:experimental
FROM ubuntu as clone
LABEL maintainer="Luke Crooks <luke@pum...