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Microsoft Excel mangles Diacritics in .csv files?
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An efficient compression algorithm for short text strings [closed]
...ay (e.g. all URLs, all C programs, all StackOverflow posts, all ASCII-art drawings) then certain substrings will appear in most or all of the input files.
Every compression algorithm will save space if the same substring is repeated multiple times in one input file (e.g. "the" in English text or "...
How to import CSV file data into a PostgreSQL table?
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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
... on a Linux system without special privileges, as well as a far faster and more poweful backend which requires patching the kernel.
It is also possible to create a sandbox on Unix-like systems using chroot(1), although that is not quite as easy or secure. Linux Containers and FreeBSD jails are a be...
How to call a stored procedure from Java and JPA
...ecause the JPA StoredProcedureQuery does not work for SQL FUNCTIONS.
For more details about how to call stored procedures and functions when using JPA and Hibernate, check out the following articles
How to call Oracle stored procedures and functions with JPA and Hibernate
How to call SQL Server...
How to upgrade Git to latest version on macOS?
...all Homebrew if you didn’t have
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Or update if you already have
$ brew update && brew upgrade
Install Git with Homebrew
$ brew install git
Symbolic link
$ brew link --force git
Quit terminal ...
Fast way to get image dimensions (not filesize)
...f an image in pixels. It should handle at least JPG, PNG and TIFF, but the more the better. I emphasize fast because my images are quite big (up to 250 MB) and it takes soooo long to get the size with ImageMagick's identify because it obviously reads the images as a whole first.
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What is Dispatcher Servlet in Spring?
...ontroller to send the request to. So the DispatcherServlet consults one or more handler mappings (2) to figure out where the request’s next stop will be. The handler mapping pays particular attention to the URL carried by the request when making its decision.
Once an appropriate controller has bee...
Checkout one file from Subversion
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How can I rename a database column in a Ruby on Rails migration?
...need to write a separate down method".
See "Active Record Migrations" for more information.
rails g migration FixColumnName
class FixColumnName < ActiveRecord::Migration
def change
rename_column :table_name, :old_column, :new_column
end
end
If you happen to have a whole bunch of colu...