Bug 177091 Can't access stored procedure defined in Oracle Package
1.setup an oracle connection 2.try to call a stored procedure defined in package
data/org.eclipse.birt.report.data.oda.jdbc/src/org/eclipse/birt/report/data/oda/jdbc/CallStatement.java
catch ( SQLException e )
		{
			throw new JDBCException( ResourceConstants.QUERY_EXECUTE_FAIL, e );
		}
	}
	/*
	 * @see org.eclipse.datatools.connectivity.oda.IAdvancedQuery#execute()
	 */
	public boolean execute( ) throws OdaException
	{
		logger.logp( java.util.logging.Level.FINE,
				CallStatement.class.getName( ),
				"execute",
				"CallableStatement.execute( )" );
		assertNotNull( callStat );
		try
		{
			{
				if ( !maxRowsUpToDate )
				{
					callStat.setMaxRows( maxrows );
					maxRowsUpToDate = true;
				}
				
				return callStat.execute( );
			}
		}
		catch ( SQLException e )
		{
			throw new JDBCException( ResourceConstants.QUERY_EXECUTE_FAIL, e );