diff --git a/HowtoMySQL.md b/HowtoMySQL.md
index 35fcab7d..d7bb8b76 100644
--- a/HowtoMySQL.md
+++ b/HowtoMySQL.md
@@ -773,6 +773,35 @@ FROM information_schema.TABLES
 ORDER BY (data_length + index_length) DESC;
 ~~~
 
+Pour lister tous les Indexes de toutes les tables et de toutes les bases :
+
+~~~
+select index_schema, index_name, group_concat(column_name order by seq_in_index) as index_columns, index_type, case non_unique when 1 then 'Not Unique' else 'Unique' end as is_unique, table_name from information_schema.statistics where table_schema not in ('information_schema', 'mysql', 'performance_schema', 'sys') group by index_schema, index_name, index_type, non_unique, table_name order by index_schema, index_name;
+~~~
+
+En version plus "lisible" pour mettre dans un script ou autre :
+
+~~~
+select index_schema,
+       index_name,
+       group_concat(column_name order by seq_in_index) as index_columns,
+       index_type,
+       case non_unique
+            when 1 then 'Not Unique'
+            else 'Unique'
+            end as is_unique,
+        table_name
+from information_schema.statistics
+where table_schema not in ('information_schema', 'mysql',
+                           'performance_schema', 'sys')
+group by index_schema,
+         index_name,
+         index_type,
+         non_unique,
+         table_name
+order by index_schema,
+         index_name;
+~~~
 
 ## Logs