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Connect to Sybase Data in Ruby

Connect to Sybase data in Ruby with ruby-dbi, dbd-odbc, and ruby-odbc.

The CData ODBC Driver for Sybase makes it easy to integrate connectivity to live Sybase data in Ruby. This article shows how to create a simple Ruby app that connects to Sybase data, executes a query, and displays the results.

Create an ODBC Connection to Sybase Data

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

To authenticate with Sybase, set User and Password. Additionally, set IntegratedSecurity; to true to use Windows authentication otherwise, Sybase authentication is used. Set the Server and Database properties. To secure connections with TLS/SSL, set Encrypt to true.

Installing Ruby and Necessary Gems

If you do not have Ruby installed, refer to the Ruby installation page. With Ruby installed, you will need to install the ruby-dbi, dbd-odbc, and ruby-odbc gems:

gem install dbi gem install dbd-odbc gem install ruby-odbc

Create a Ruby App with Connectivity to Sybase Data

Create a new Ruby file (for example: SybaseSelect.rb) and open it in a text editor. Copy the following code into your file:

#connect to the DSN require 'DBI' cnxn = DBI.connect('DBI:ODBC:CData Sybase Source','','') #execute a SELECT query and store the result set resultSet = cnxn.execute("SELECT Id, ProductName FROM Products WHERE ProductName = Konbu") #display the names of the columns resultSet.column_names.each do |name| print name, "\t" end puts #display the results while row = resultSet.fetch do (0..resultSet.column_names.size - 1).each do |n| print row[n], "\t" end puts end resultSet.finish #close the connection cnxn.disconnect if cnxn

With the file completed, you are ready to display your Sybase data with Ruby. To do so, simply run your file from the command line:

ruby SybaseSelect.rb Writing SQL-92 queries to Sybase allows you to quickly and easily incorporate Sybase data into your own Ruby applications. Download a free trial today!