Highlight SELECT queries as cause of issues with sql_affectedrows

Author: marc1706

development/db/dbal.rst

@@ -384,7 +384,7 @@ Example:
     $affected_rows = $db->sql_affectedrows();
 
 .. warning::
-    Be cautious when using ``sql_affectedrows()`` to determine the number of rows affected by your query.
+    Be cautious when using ``sql_affectedrows()`` to determine the number of rows affected by your query, especially with **SELECT** queries.
     This function's behavior can differ depending on the used database driver and whether the query was cached.
 
     Do not rely solely on ``sql_affectedrows()`` to confirm the number of impacted rows. Consider alternative approaches