text: create table tab_comment
  ( 	
      col1		number(5)
  );
  
  create table tab_col_comment
  ( 	
      col1		number(5)
  );
  
  create table tab_drop_comment
  ( 	
      col1		number(5)
  );
  
  comment on table tab_comment is 'Tabellenkommentar';
  comment on column tab_col_comment.col1 is 'Spaltenkommentar ''';
  