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Unable to import a module that is definitely installed
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I have run into this many times and I think I just discovered the reason: umask is passed through sudo, so if your personal umask is tight and you use sudo for the install, the files and directories will be over-restricted. If you simply su first and then...
Difference between Role and GrantedAuthority in Spring Security
There are concepts and implementations in Spring Security, such as the GrantedAuthority interface to get an authority to authorize/control an access.
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Passing variables in remote ssh command
I want to be able to run a command from my machine using ssh and pass through the environment variable $BUILD_NUMBER
7 Ans...
How to display the function, procedure, triggers source code in postgresql?
How to print functions and triggers sourcecode in postgresql? please let me know if any one know the query to display the function, triggers source code.
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Convert Datetime column from UTC to local time in select statement
I'm doing a few SQL select queries and would like to convert my UTC datetime column into local time to be displayed as local time in my query results. Note, I am NOT looking to do this conversion via code but rather when I am doing manual and random SQL queries against my databases.
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Spring @Transactional - isolation, propagation
...nce characteristics in a multi-threaded application. I think if you understand the dirty reads concept you will be able to select a good option.
Example of when a dirty read can occur:
thread 1 thread 2
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write(x) |
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| read(x)
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How can I make a time delay in Python? [duplicate]
...l... it'll print less frequently than that, because it takes time to print and handle all the buffers that entails (possibly doing a kernel context switch), and to register the alarm signal, but... yeah. A little under once per minute.
– Parthian Shot
Jun 17 '1...
Should I compile release builds with debug info as “full” or “pdb-only”?
..., or pdb-only. Based on the answer to this question , I believe I understand some of the differences between full and pdb-only. However, which is more appropriate for a release build? If I use "full" will there be performance ramifications? If I use "pdb-only" will it be harder to debug product...
How to replace multiple white spaces with one white space
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This question isn't as simple as other posters have made it out to be (and as I originally believed it to be) - because the question isn't quite precise as it needs to be.
There's a difference between "space" and "whitespace". If you only mean spaces, then you should use a regex of " {2,}". If ...
Automatic creation date for Django model form objects?
What's the best way to set a creation date for an object automatically, and also a field that will record when the object was last updated?
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