Qs Why is Parse = 2 in the following Query ?

Solaris 8
Oracle 8.1.7 
SGA = 60 MB
shared_pool_size = 30 MB

********************************************************************************

select mesg, lchg_user_id, TO_CHAR(lchg_time,'DD-MM-YYYY HH24:MI:SS'),
  rcre_user_id, TO_CHAR(rcre_time,'DD-MM-YYYY HH24:MI:SS'), tran_id,
  TO_CHAR(tran_date,'DD-MM-YYYY HH24:MI:SS'), NVL(ts_cnt,0), sol_id,
  contra_acid, tran_amt||'!'||tran_crncy_code, TO_CHAR(value_date,'DD-MM-YYYY
  HH24:MI:SS'), tran_crncy_code, central_or_local_code, req_advc_ind,
  sys_gen_flg, rowid
FROM
 TBA_REF_TRN_TBL  WHERE  cmd =  :1   AND cust_or_card_id =  :2   AND
  system_date_time = TO_DATE( :3 ,'DD-MM-YYYY HH24:MI:SS')  AND dcc_id =  :4
   AND sno =  :5


call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        2      0.06       0.07          1          0          1           0
Execute      2      0.00       0.00          0          0          0           0
Fetch        2      0.00       0.02          3          6          0           0
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        6      0.06       0.09          4          6          1           0

Misses in library cache during parse: 1
Optimizer goal: CHOOSE
Parsing user id: 40  (TBAGEN)

Rows     Row Source Operation
-------  ---------------------------------------------------
      0  TABLE ACCESS BY INDEX ROWID REF_TRN_TBL
      1   INDEX UNIQUE SCAN (object id 6561)



Rows     Execution Plan
-------  ---------------------------------------------------
      0  SELECT STATEMENT   GOAL: CHOOSE
      0   TABLE ACCESS (BY INDEX ROWID) OF 'REF_TRN_TBL'
      1    INDEX (UNIQUE SCAN) OF 'IDX_REF_TRN_TBL' (UNIQUE)

********************************************************************************
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--
Author: VIVEK_SHARMA
  INET: [EMAIL PROTECTED]

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