Connect to SQL Database by using Ruby on Ubuntu Linux

[Ruby code sample] (sample_ruby_linux.rb) that runs on an Ubuntu Linux client computer to connect to an Azure SQL Database database.

Install the required modules

Open your terminal and install RVM.

sudo apt-get --assume-yes update
command curl -sSL https://rvm.io/mpapis.asc | gpg --import -
curl -L https://get.rvm.io | bash -s stable
source ~/.rvm/scripts/rvm

Next, install Ruby on your machine.

 rvm install 2.3.0
 rvm use 2.3.0 --default
 ruby -v

Ensure you are running version 2.3.0.

Install FreeTDS

sudo apt-get --assume-yes install freetds-dev freetds-bin

Install TinyTDS

gem install tiny_tds

Create a database, retrieve your connection string

The Ruby sample relies on the AdventureWorks sample database. If you do not already have AdventureWorks, you can see how to create it at the following topic: Create your first Azure SQL Database

##Using TinyTDS with Azure

It is recommend the following settings when using TinyTDS with Azure.

SET ANSI_NULLS ON
SET CURSOR_CLOSE_ON_COMMIT OFF
SET ANSI_NULL_DFLT_ON ON
SET IMPLICIT_TRANSACTIONS OFF
SET ANSI_PADDING ON
SET QUOTED_IDENTIFIER ON
SET ANSI_WARNINGS ON
SET CONCAT_NULL_YIELDS_NULL ON

This can be done by running the following code prior to executing queries:

result = client.execute("SET ANSI_NULLS ON")
result = client.execute("SET CURSOR_CLOSE_ON_COMMIT OFF")
result = client.execute("SET ANSI_NULL_DFLT_ON ON")
result = client.execute("SET IMPLICIT_TRANSACTIONS OFF")
result = client.execute("SET ANSI_PADDING ON")
result = client.execute("SET QUOTED_IDENTIFIER ON")
result = client.execute("SET ANSI_WARNINGS ON")
result = client.execute("SET CONCAT_NULL_YIELDS_NULL ON")