title: Cassandra DB. com.datastax.driver.core.exceptions.InvalidQueryException: unconfigured table person
body: <p><a href="http://i.stack.imgur.com/ircNZ.png" rel="noreferrer">The keyspace and 'person' table are exist</a></p>
  
  <p>Hello, I'm new with Cassandra, so I'm just trying to execute select query from my java code, but I got an exception that the table is not exist (but it exists. Check the link above).
  Please help me figure out what could be a cause of this problem.
  Thank you in advance.</p>
  
  <pre><code>public class DS_Cassandra implements DS 
  {
      Cluster cluster;
      Session session;
      private static final Logger log = Logger.getLogger( DS_Cassandra.class.getName() );
  
      public DS_Cassandra() 
      {
          cluster = Cluster.builder().addContactPoint("127.0.0.1").build();
          session = cluster.connect("testing");
      }
  
      @Override
      public ArrayList&lt;Person&gt; read() 
      {
          ArrayList&lt;Person&gt; list = new ArrayList&lt;Person&gt;();
          ResultSet results = session.execute("SELECT * FROM person"); //and here exception happened
  
  
  
  2016-03-02 22:06:26 INFO  NettyUtil:83 - Did not find Netty's native epoll transport in the classpath, defaulting to NIO.
  2016-03-02 22:06:26 INFO  DCAwareRoundRobinPolicy:95 - Using data-center name 'datacenter1' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor)
  2016-03-02 22:06:26 INFO  Cluster:1475 - New Cassandra host /127.0.0.1:9042 added
  Exception in thread "main" com.datastax.driver.core.exceptions.InvalidQueryException: unconfigured table person
      at com.datastax.driver.core.exceptions.InvalidQueryException.copy(InvalidQueryException.java:50)
      at com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:37)
      at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:245)
      at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:63)
      at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:39)...
  </code></pre>