select a.sid,
       a.serial#,
       a.username,
       a.status,
       a.program,
       a.machine,
       c.sql_text
  from v$session a, v$session_wait b, v$sql c
 where a.sid = b.sid
   and a.sql_hash_value = c.hash_value
   and a.sql_address = c.address
   and b.event like 'db file scattered read%';

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