Connect to Excel Data in Ruby

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Excel ODBC Driver

The Excel ODBC Driver is a powerful tool that allows you to connect with live Excel file data, directly from any applications that support ODBC connectivity.

Access Excel Spreadsheet data like you would a database - read, write, and update data through a standard ODBC Driver interface.



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

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

Create an ODBC Connection to Excel 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.

The ExcelFile, under the Authentication section, must be set to a valid Excel File.

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 Excel Data

Create a new Ruby file (for example: ExcelSelect.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 Excel Source','','') #execute a SELECT query and store the result set resultSet = cnxn.execute("SELECT Name, Revenue FROM Sheet") #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 Excel data with Ruby. To do so, simply run your file from the command line:

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