GettingStartedDatastaxRubyDriver

GettingStartedDatastaxRubyDriver.rb

require 'cassandra'

cluster = Cassandra.connect
#cluster.each_host do |host|
#  puts "Host #{"127.0.0.1"}: id=#{"6123e2c1-e3ca-4d08-a544-1315b2f399f1"} datacenter=#{"datacenter1"} rack=#{"rack1"}"
#end

keyspace = 'demo'
session  = cluster.connect(keyspace)

session.execute("INSERT INTO users (lastname, age, city, email, firstname) VALUES ('Jones', 35, 'Austin', 'bob@example.com', 'Bob')")

session.execute("SELECT firstname, age FROM users WHERE lastname='Jones'").each do |row|
    p row
end



session.execute("UPDATE users SET age = 36 WHERE lastname = 'Jones'")

session.execute("SELECT firstname, age FROM users WHERE lastname='Jones'").each do |row|
    p row
end



session.execute("DELETE FROM users WHERE lastname = 'Jones'")

session.execute("SELECT * FROM users").each do |row|
    p row
end