RE: Trace Evaluation

From: Koivu, Lisa <lisa.koivu_at_efairfield.com>
Date: Mon, 25 Jun 2001 06:48:30 -0700
Message-ID: <F001.00336489.20010625061546@fatcity.com>

Hi Vivek,

Yes.  Select into expects one record (and your index is unique), so you can do this: Try adding AND ROWNUM < 2 to the query and it will quit after it finds the record it is looking for.  Please post your results, I'm curious how big of a difference this makes.

HTH Lisa Koivu
Petite Clumsy Ninja-ette
Ft. Lauderdale, FL, USA

-----Original Message-----

From:   VIVEK_SHARMA [SMTP:VIVEK_SHARMA_at_infy.com]
Sent:   Monday, June 25, 2001 8:45 AM
To:     Multiple recipients of list ORACLE-L

Subject:        Trace Evaluation

Is there Any Scope for Improvement in the Following ?

select acct_crncy_code into :b0 
from
GAM where acid=:b1

call     count       cpu    elapsed       disk      query    current rows
------- ------  -------- ---------- ---------- ---------- ----------

---

Parse        1      0.00       0.00          0          0          0 0
Execute  73710      3.49       4.60          0          0          0 0
Fetch    73710      4.93       4.82          0     294840          0 73710
------- ------  -------- ---------- ---------- ---------- ----------

---

total   147421      8.42       9.42          0     294840          0 73710

Misses in library cache during parse: 0
Optimizer goal: CHOOSE
Parsing user id: 20  (TBAGEN)

Rows     Execution Plan
-------  ---------------------------------------------------


      0  SELECT STATEMENT   GOAL: CHOOSE

      0   TABLE ACCESS (BY INDEX ROWID) OF 'GENERAL_ACCT_MAST_TABLE'
      0    INDEX (UNIQUE SCAN) OF 'IDX_GENERAL_ACCT_MAST_TABLE' (UNIQUE)

---

---

NOTE - IDX_GENERAL_ACCT_MAST_TABLE is Defined on Field ACID of GAM Table

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: VIVEK_SHARMA
  INET: VIVEK_SHARMA_at_infy.com


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Received on Mon Jun 25 2001 - 08:48:30 CDT