Atualização de um linha em uma tabela

static final String JDBC_DRIVER = "org.firebirdsql.jdbc.FBDriver";        
    
    public static void main(String[] args)
    {

      Connection conn = null; 
      Statement stm = null;      
      int linhas;

     try
       {
        Class.forName( JDBC_DRIVER ); 
        conn = DriverManager.getConnection("jdbc:firebirdsql:localhost/3050:G:/bancos/aih/fb/BDAIH.fdb", "SYSDBA", "masterkey" );
       
        stm = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);
        ResultSet consulta = stm.executeQuery(            
        "SELECT AIH From AIH");      
        consulta.absolute(1);
        try
        {        
         consulta.updateString("APRES,"0105");
         consulta.updateRow();
        }
        catch ( SQLException sqlException )
       {
        sqlException.printStackTrace();
        System.exit( 1 );
       }         
         
       } 
       catch ( SQLException sqlException )
       {
        sqlException.printStackTrace();
        System.exit( 1 );
       } 
       catch ( ClassNotFoundException classNotFound )
       {
        classNotFound.printStackTrace();
        System.exit( 1 );
       } 
       finally 
       {                                                             
        try                                                        
        {                                                          
         conn.close();                                     
        }                  
        catch ( Exception exception )                              
        {                                                          
        exception.printStackTrace();                            
        System.exit( 1 );                                       
        }          
       }  
   }

org.firebirdsql.jdbc.FBResultSetNotUpdatableException: Underlying result set does not contain all columns that form 'best row identifier'.
        at org.firebirdsql.jdbc.FBRowUpdater.getParameterMask(FBRowUpdater.java:198)
        at org.firebirdsql.jdbc.FBRowUpdater.executeStatement(FBRowUpdater.java:431)
        at org.firebirdsql.jdbc.FBRowUpdater.updateRow(FBRowUpdater.java:340)
        at org.firebirdsql.jdbc.FBResultSet.updateRow(FBResultSet.java:2493)