add best example using row limiting clause in G-3185

Author: PhilippSalvisberg

docs/4-language-usage/3-dml-and-sql/1-general/g-3185.md

@@ -37,4 +37,19 @@ select first_name
            order by salary desc
        )
  where rownum <= 5; -- NOSONAR: G-1050 literal is ok for a standalone query
+```
+
+## Example (best)
+
+(Assuming you are using Oracle Database 12c or later.)
+
+``` sql
+select first_name
+      ,last_name
+      ,salary
+      ,hire_date
+      ,rank() over (order by salary desc) as salary_rank
+  from employees
+ order by salary desc
+fetch first 5 rows only; -- NOSONAR: G-1050 literal is ok for a standalone query
 ```