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Surrogate vs. natural/business keys [closed]
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Now, after reading a lot about surrogate keys and natural keys, I think using surrogate keys is better. But, on my database, natural keys (a NVARCHAR(20)) must be unique. I don't understand how I can get more speed if I need ...
Is D a credible alternative to Java and C++? [closed]
... see of D, by all means, learn it - it shouldn't take long if you already know Java and C++. I don't think evangelism would be helpful - at this point if D is going to succeed, what it really needs is more people quietly using it and addressing its major shortcomings like standard library and IDE s...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
...ed 666 times using WORSE method
Triggered 354 times using BETTER method
Now granted, this is not the best test or the best design but when faced with a situation where you have no choice but implementing such a loop or when dealing with existing code that behaves badly, choosing to reuse objects ...
Mercurial move changes to a new branch
...eans, revision 0 is the base on which you started to work on your feature. Now you want to have revisions 1-2 on a named branch, let's say my-feature. Update to revision 0 and create that branch:
$ hg up 0
$ hg branch my-feature
$ hg ci -m "start new branch my-feature"
The history now looks like ...
Best way to use multiple SSH private keys on one client
...File ~/.ssh/private_ssh_file
User username-on-remote-machine
Now you can connect using the friendly-name:
ssh friendly-name
More keywords can be found on the OpenSSH man page. NOTE: Some of the keywords listed might already be present in your /etc/ssh/ssh_config file.
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Why use sprintf function in PHP?
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This. Now add numbered arguments and translations :]
– Konerak
Apr 23 '12 at 16:57
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Get property value from string using reflection
...null value of an existing property or no property at all? I'd much rather know immediately that I was sending in a bad property name. This is not production code, but a better improvement would be to throw a more specific exception (e.g. check for null on GetProperty and throw PropertyNotFoundExcept...
How is Python's List Implemented?
... list, an array? I searched around and only found people guessing. My C knowledge isn't good enough to look at the source code.
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Proper indentation for Python multiline strings
...iable name from string to text or anything of a different length, then you now need to update the indentation of literally every single line of the multiline string just to get it to match up with the """ properly. Indentation strategy should not complicate future refactors/maintenance, and it's one...
How do I install pip on macOS or OS X?
...y have access to easy_install considering you are using macOS/OSX.
ℹ️ Now, all you have to do is run the following command.
sudo easy_install pip
After that, pip will be installed and you'll be able to use it for installing other packages.
Let me know if you have any problems installing pip...