diff --git a/sql/21_datafile.sql b/sql/21_datafile.sql
index 274684c..64fbc81 100644
--- a/sql/21_datafile.sql
+++ b/sql/21_datafile.sql
@@ -8,12 +8,15 @@ COL status head "Statut"
 COL online_status format a15 head "Online Statut"
 
 SELECT  
-       file_name, file_id, tablespace_name, 
-       round(bytes/1024/1024,0) "Bytes Mo", status, autoextensible, 
-       round(maxbytes/1024/1024,0) "MaxBytes Mo", online_status "Online Statut"
+       file_id, file_name, tablespace_name, 
+       round(bytes/1024/1024,0) "Bytes Mo",  
+       round(maxbytes/1024/1024,0) "MaxBytes Mo", 
+       round(100*bytes/maxbytes) "% Used",
+       online_status,
+       status, autoextensible
   FROM dba_data_files 
  ORDER BY
-	   file_name;
+          file_name;
 
 prompt <h2>Existance de blocks corrompus :</h2>
 select * from v$database_block_corruption;