How to find sqltext

How to find sqltext related to an event in oracle 9i.
SQL> select event,count(*) from v$session_wait group by event;
EVENT                                                              COUNT(*)
---------------------------------------------------------------- ----------
SQL*Net message from client                                               9
SQL*Net message to client                                                 1
db file scattered read                                                    1
pmon timer                                                                1
rdbms ipc message                                                         8
smon timer                                                                1
How can I find that sql_id performs 'file db scattered read '.

Concerning

SELECT a.SID, b.serial #, SUBSTR (b.machine, 1, 16) machine,.
SUBSTR (a.event, 1, 36) event, a.p1, a.p2, a.p3, a.wait_time,.
a.seconds_in_wait, a.state, c.sql_text, b.sql_address
V $ session_wait a, v$ session b, v$ sql c
WHERE select a.SID =
AND b.sql_address = c.address
AND a.event = 'db scattered file read. "

Tags: Database

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