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Cannot change column used in a foreign key constraint
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Good point, unfortunately MySQL does not support transactions around DDL statements. Open transactions are commited before a DDL query is executed see dev.mysql.com/doc/refman/5.5/en/implicit-commit.html
– Michel Feldheim
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What is a memory fence?
...pying my answer to another question, What are some tricks that a processor does to optimize code?:
The most important one would be memory access reordering.
Absent memory fences or serializing instructions, the processor is free to reorder memory accesses. Some processor architectures have ...
Multiple GitHub Accounts & SSH Config
...T git@github.com
Hi stefano! You've successfully authenticated, but GitHub does not provide shell access.
$ ssh -T git@work.github.com
Hi stefano! You've successfully authenticated, but GitHub does not provide shell access.
Note that you'll have to change the hostname (github / work.github) depen...
Where to place $PATH variable assertions in zsh?
...orrect. The information is incorrect compared to the zsh manual pages, and doesn't seem to apply to zsh on OS X (paths in $PATH set in /etc/profile do not make it to my zsh sessions).
To address the question:
where exactly should I be placing my rvm, python, node etc additions to my $PATH?...
How to find and return a duplicate value in array
...he "detect" method is that it stops when it finds the first duplicate, and doesn't give you all the dups.
– Jaime Bellmyer
Jan 26 '14 at 22:57
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What is Dependency Injection and Inversion of Control in Spring Framework?
... create the dependent object.
What it means in practice is that the method does not have a direct dependency on a particular implementation; any implementation that meets the requirements can be passed as a parameter.
With this implementation of objects defines their dependencies. And spring makes i...
Why is there a difference in checking null against a value in VB.NET and C#?
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"VB.NET Nothing <> C# null" does it return true for C# and false for VB.Net? Just kidding :-p
– ken2k
Mar 20 '13 at 12:59
add a ...
Generating Random Passwords
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AFAIK this method does not generate a password complying to a password policy on the domain so it's not suitable for every usage.
– teebot
Apr 14 '10 at 14:05
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Why can't variables be declared in a switch statement?
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@workmad3 by entering a new curly braces block doesn't cause a new stack frame stackoverflow.com/questions/2759371/…
– MTVS
Jan 14 '13 at 9:40
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clang: how to list supported target architectures?
...rchitectures a given clang binary supports, and even running strings on it doesn't really help. Clang is essentially just a C to LLVM translator, and it's LLVM itself that deals with the nitty-gritty of generating actual machine code, so it's not entirely surprising that Clang isn't paying much atte...