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Connect to Azure Table Data in Ruby
Connect to Azure Table data in Ruby with ruby-dbi, dbd-odbc, and ruby-odbc.
The CData ODBC Driver for Azure Table makes it easy to integrate connectivity to live Azure Table data in Ruby. This article shows how to create a simple Ruby app that connects to Azure Table data, executes a query, and displays the results.
Create an ODBC Connection to Azure Table 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.
Specify your AccessKey and your Account to connect. Set the Account property to the Storage Account Name and set AccessKey to one of the Access Keys. Either the Primary or Secondary Access Keys can be used. To obtain these values, navigate to the Storage Accounts blade in the Azure portal. You can obtain the access key by selecting your account and clicking Access Keys in the Settings section.
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 Azure Table Data
Create a new Ruby file (for example: AzureTablesSelect.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 AzureTables Source','','')
#execute a SELECT query and store the result set
resultSet = cnxn.execute("SELECT Name, Price FROM NorthwindProducts")
#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 Azure Table data with Ruby. To do so, simply run your file from the command line:
ruby AzureTablesSelect.rb
Writing SQL-92 queries to Azure Table allows you to quickly and easily incorporate Azure Table data into your own Ruby applications. Download a free trial today!
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Azure ODBC Driver
The Azure Table ODBC Driver is a powerful tool that allows you to connect with live Azure Table data, directly from any applications that support ODBC connectivity.
Access Azure Table Storage like you would a database - read, write, and update data through a standard ODBC Driver interface.
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