Csvlite

Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file lib/csvlite. To experiment with that code, run bin/console for an interactive prompt.

Add this line to your application's Gemfile:

gem 'csvlite'

And then execute:

$ bundle

Or install it yourself as:

$ gem install csvlite

User Table

Post Table

query = <<-SQL
    SELECT post.title FROM user INNER JOIN post ON user.id = post.user_id WHERE user.name = 'Peter'
SQL

result = CSVLite.query_files(['user.csv', 'post.csv'], query)

query = <<-SQL
    SELECT post.title FROM user INNER JOIN post ON user.id = post.user_id WHERE user.name = 'Peter'
SQL

lite = CSVLite.new
lite.load_multiple(['user.csv', 'post.csv'])
result = lite.query(query)

query = <<-SQL
    SELECT post.title FROM member INNER JOIN post ON member.id = post.user_id WHERE member.name = 'Peter'
SQL

lite = CSVLite.new
lite.load_from_csv_file('user.csv', 'member')
lite.load_from_csv_file('post.csv')
result = lite.query(query)

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/csvlite. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.