public void clearConditionItem() {
        if(DEGUB)System.out.println("In clearConditionItem()");
        
        try (Statement stmt = con.createStatement();)
        {
            stmt.executeUpdate("DELETE FROM Conditions");
            int index = getRowCount();
            conditionItemList.clear();
            rowEditable.clear();
            //Fire table row deletion notification to table.
            fireTableRowsDeleted(0,index);   
        } catch (SQLException ex) {
            System.err.println(ex.getClass().getName() + ": " + ex.getMessage());
        }
        
    }