title: Adding database drivers to use WEKA classes
body: <p>I tried to run the following command on the command-line:</p>
  
  <pre><code>G:\Weka-3-6&gt;java weka.core.converters.CSVLoader data.csv &gt; data.arff
  </code></pre>
  
  <p>This is the error message:</p>
  
  <pre><code>---Registering Weka Editors---
  Trying to add database driver (JDBC): RmiJdbc.RJDriver - Error, not in CLASSPATH?
  Trying to add database driver (JDBC): jdbc.idbDriver - Error, not in CLASSPATH?
  Trying to add database driver (JDBC): org.gjt.mm.mysql.Driver - Error, not in CLASSPATH?
  Trying to add database driver (JDBC): com.mckoi.JDBCDriver - Error, not in CLASSPATH?
  Trying to add database driver (JDBC): org.hsqldb.jdbcDriver - Error, not in CLASSPATH?
  Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
      at java.util.Hashtable.&lt;init&gt;(Unknown Source)
      at java.util.Hashtable.&lt;init&gt;(Unknown Source)
      at java.util.Properties.propertyNames(Unknown Source)
      at weka.core.ProtectedProperties.&lt;init&gt;(ProtectedProperties.java:55)
      at weka.core.Attribute.&lt;init&gt;(Attribute.java:215)
      at weka.core.converters.CSVLoader.readHeader(CSVLoader.java:744)
      at weka.core.converters.CSVLoader.readStructure(CSVLoader.java:416)
      at weka.core.converters.CSVLoader.getStructure(CSVLoader.java:401)
      at weka.core.converters.CSVLoader.getDataSet(CSVLoader.java:434)
      at weka.core.converters.AbstractFileLoader.runFileLoader(AbstractFileLoader.java:323)
      at weka.core.converters.CSVLoader.main(CSVLoader.java:804)
  </code></pre>
  
  <p>I do see that it speaks something about adding the database drivers to the classpath. What are the steps in adding the database drivers to the classpath? Also, would I need additional software packages?</p>