@Override
 public void appendModifier(
     OBJECT_TYPE column, StringBuilder sql, DBECommandAbstract<OBJECT_TYPE> command) {
   if (column.isRequired()) {
     sql.append(" NOT NULL"); // $NON-NLS-1$
   }
 }
        @Override
        public void appendModifier(
            OBJECT_TYPE column, StringBuilder sql, DBECommandAbstract<OBJECT_TYPE> command) {
          String defaultValue = CommonUtils.toString(column.getDefaultValue());
          if (!CommonUtils.isEmpty(defaultValue)) {
            boolean useQuotes =
                column.getDataKind() == DBPDataKind.STRING
                    || column.getDataKind() == DBPDataKind.DATETIME;

            if (useQuotes && defaultValue.trim().startsWith(QUOTE)) {
              useQuotes = false;
            }

            sql.append(" DEFAULT "); // $NON-NLS-1$
            if (useQuotes) sql.append(QUOTE);
            sql.append(defaultValue);
            if (useQuotes) sql.append(QUOTE);
          }
        }
 @Override
 public void appendModifier(
     OBJECT_TYPE column, StringBuilder sql, DBECommandAbstract<OBJECT_TYPE> command) {
   final String typeName = column.getTypeName();
   DBPDataKind dataKind = column.getDataKind();
   final DBSDataType dataType = findDataType(column.getDataSource(), typeName);
   sql.append(' ').append(typeName);
   if (dataType == null) {
     log.debug(
         "Type name '"
             + typeName
             + "' is not supported by driver"); //$NON-NLS-1$ //$NON-NLS-2$
   } else {
     dataKind = dataType.getDataKind();
   }
   String modifiers = SQLUtils.getColumnTypeModifiers(column, typeName, dataKind);
   if (modifiers != null) {
     sql.append(modifiers);
   }
 }
  @Override
  protected StringBuilder getNestedDeclaration(
      TABLE_TYPE owner, DBECommandAbstract<OBJECT_TYPE> command) {
    OBJECT_TYPE column = command.getObject();

    // Create column
    String columnName = DBUtils.getQuotedIdentifier(column.getDataSource(), column.getName());

    if (command instanceof SQLObjectEditor.ObjectRenameCommand) {
      columnName = ((ObjectRenameCommand) command).getNewName();
    }

    StringBuilder decl = new StringBuilder(40);
    decl.append(columnName);
    for (ColumnModifier modifier : getSupportedModifiers()) {
      modifier.appendModifier(column, decl, command);
    }

    return decl;
  }
 @Override
 public void appendModifier(
     OBJECT_TYPE column, StringBuilder sql, DBECommandAbstract<OBJECT_TYPE> command) {
   sql.append(column.isRequired() ? " NOT NULL" : " NULL");
 }
 @Override
 public boolean canEditObject(OBJECT_TYPE object) {
   TABLE_TYPE table = object.getParentObject();
   return table != null && !table.isView();
 }