require 'rubygems'
require 'java'
require 'sqljdbc4.jar'

Java::com.microsoft.sqlserver.jdbc.SQLServerDriver
conn = java.sql.DriverManager.get_connection("jdbc:sqlserver://;serverName=localhost", "sa", "P@ssW0rd")
stmt = conn.create_statement

rs = stmt.execute_query("SELECT 'Hello, JDBC Type4 World!' AS Message")

while (rs.next) do
  puts rs.getString(1)
end

rs.close
stmt.close
conn.close