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Connect to SAP HANA XS Advanced Data in JRuby
Create a simple JRuby app with access to live SAP HANA XS Advanced data.
JRuby is a high-performance, stable, fully threaded Java implementation of the Ruby programming language. The CData JDBC Driver for SAP HANA XS Advanced makes it easy to integrate connectivity to live SAP HANA XS Advanced data in JRuby. This article shows how to create a simple JRuby app that connects to SAP HANA XS Advanced data, executes a query, and displays the results.
Configure a JDBC Connection to SAP HANA XS Advanced Data
Before creating the app, note the installation location for the JAR file for the JDBC Driver (typically C:\Program Files\CData\CData JDBC Driver for SAP HANA XS Advanced\lib).
JRuby natively supports JDBC, so you can easily connect to SAP HANA XS Advanced and execute SQL queries. Initialize the JDBC connection with the getConnection function of the java.sql.DriverManager class.
SAP HANA XSA uses the OAuth authentication standard. Before connecting, it is necessary to establish an SAP HANA XSA OData Service. See the OAuth section in the Help documentation for a guide.
Built-in Connection String Designer
For assistance in constructing the JDBC URL, use the connection string designer built into the SAP HANA XS Advanced JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.
java -jar cdata.jdbc.saphanaxsa.jar
Fill in the connection properties and copy the connection string to the clipboard.
Below is a typical JDBC connection string for SAP HANA XS Advanced:
jdbc:saphanaxsa:OAuthClientID=my-ouath-client-id;OAuthClientSecret=my-oauth-client-secret;URL=https://hxehost:51027/euro.xsodata;CallbackURL=http://localhost:33333;InitiateOAuth=GETANDREFRESH
Create a JRuby App with Connectivity to SAP HANA XS Advanced Data
Create a new Ruby file (for example: SAPHanaXSASelect.rb) and open it in a text editor. Copy the following code into your file:
require 'java'
require 'rubygems'
require 'C:/Program Files/CData/CData JDBC Driver for SAP HANA XS Advanced 2018/lib/cdata.jdbc.saphanaxsa.jar'
url = "jdbc:saphanaxsa:OAuthClientID=my-ouath-client-id;OAuthClientSecret=my-oauth-client-secret;URL=https://hxehost:51027/euro.xsodata;CallbackURL=http://localhost:33333;InitiateOAuth=GETANDREFRESH"
conn = java.sql.DriverManager.getConnection(url)
stmt = conn.createStatement
rs = stmt.executeQuery("SELECT , FROM ")
while (rs.next) do
puts rs.getString(1) + ' ' + rs.getString(2)
end
With the file completed, you are ready to display your SAP HANA XS Advanced data with JRuby. To do so, simply run your file from the command line:
jruby -S SAPHanaXSASelect.rb
Writing SQL-92 queries to SAP HANA XS Advanced allows you to quickly and easily incorporate SAP HANA XS Advanced data into your own JRuby applications. Download a free trial today!
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