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How does database indexing work? [closed]
...e the indices are stored together in a table using the MyISAM engine, this file can quickly reach the size limits of the underlying file system if many fields within the same table are indexed.
How does it work?
Firstly, let’s outline a sample database table schema;
Field name Data type...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
... compiler converts this to
i = (int)(i + l);
I just checked the .class file code.
Really a good thing to know
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What does 'const static' mean in C and C++?
...the linkage. You should remove "the static part limits it's scope to that file".
– Richard Corden
Oct 7 '08 at 9:15
T...
Inheriting class methods from modules / mixins in Ruby
...ans that you can dynamically create new classes, assign them to variables, etc.:
klass = Class.new do
def foo
"foo"
end
end
#=> #<Class:0x2b613d0>
klass.new.foo
#=> "foo"
Also in Ruby, you have the possibility of defining so-called singleton methods on objects. These methods ...
How do I alias commands in git?
...e said the appropriate way to add git aliases is in your global .gitconfig file either by editing ~/.gitconfig or by using the git config --global alias.<alias> <git-command> command
Below is a copy of the alias section of my ~/.gitconfig file:
[alias]
st = status
ci = commit
...
Setting Curl's Timeout in PHP
...
Hello, this code works but source file is 7MB and this download me only 52KB, what could be wrong ? URL is something like webserver.tld/folder/download/…
– Muflix
Aug 24 '14 at 10:33
...
Multiple commands in gdb separated by some sort of delimiter ';'?
...end
And then just type:
(gdb) fn
You can put this in your ~/.gdbinit file as well so it is always available.
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http HEAD vs GET performance
..." at the server. Resources are often stored as a record in a database or a file on the filesystem. Unless the resource is large or is slow to retrieve at the server, you might not see a measurable gain by using HEAD instead of GET. It could be that retrieving the meta data is not any faster than ret...
Can't install PIL after Mac OS X 10.9
...nd any downloads that satisfy the requirement pil Some externally hosted files were ignored (use --allow-external pil to allow). Cleaning up... No distributions at all found for pil Storing debug log for failure in /Users/Usermania/.pip/pip.log
– Leonid
Mar 2...
Any way to exit bash script, but not quitting the terminal
...ly is that you're sourcing and not executing the script. When you source a file, its contents will be executed in the current shell, instead of spawning a subshell. So everything, including exit, will affect the current shell.
Instead of using exit, you will want to use return.
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