Oracle Forms6i Query Performance issue - Urgent

Question

Hi All,
I'm using oracle forms6i and Oracle DB 9i.
I'm facing the performance issue in query forms.
In detail block form taking long time to load the data.
Form contains 2 non data blocks
1.HDR - 3 input parameters
2.DETAILS - Grid - Details
HDR input fields
1.Company Code
2.Company ACccount No
3.Customer Name
Details Grid is displayed the details.
Here there are 2 tables involved
1.Table1 - 1 crore records
2.Table2 - 4 crore records
In form procedure one cursor bulid and fetch is done directly and assign the values to form block fields.
Below i've pasted the query
SELECT
t1.entry_dt,
t2.authoriser_code,
t1.company_code,
t1.company_ac_no
initcap(t1.customer_name) cust_name,
t2.agreement_no
t1.customer_id
FROM
table1 t1,
table2 t2
WHERE
(t2.trans_no = t1.trans_no or t2.temp_trans_no = t1.trans_no)
AND t1.company_code = nvl(:hdr.l_company_code,t1.company_code)
AND t1.company_ac_no = nvl(:hdr.l_company_ac_no,t1.company_ac_no)
AND lower(t1.customer_name) LIKE lower(nvl('%'||:hdr.l_customer_name||'%' ,t1.customer_name))
GROUP BY
t2.authoriser_code,
t1.company_code,
t1.company_ac_no,
t1.customer_name,
t2.agreement_no,
t1.customer_id;
Where Clause Analysis
1.Condition 1 OR operator (In table2 two different columbs are compared with one column in table)
2.Like Operator
3.All the columns has index but not used properly always full table scan
4.NVL chk
5.If i run the qry in backend means coming little fast,front end very slow
Input Parameter - Query retrival data - limit
Only compnay code means record count will be 50 - 500 records -
Only compnay code and comp ac number means record count will be 1-5
Only compnay code,omp ac number and customer name means record count will be 1 - 5 records
I have tried following ways
1.Split the query using UNIOIN (OR clause seaparted) - Nested loops COST 850 , Nested loops COST 750 - index by row id - cost is 160 ,index by row id - cost is 152 full table access.................................
2.Dynamic SQL build - 'DBMS_SQL.DEFINE COLUMN .....
3.Given onlu one input parameter - Nested loops COST 780 , Nested loops COST 780 - index by row id - cost is 148 ,index by row id - cost is 152 full table access.................................
Still im facing the same issue.
Please help me out on this.
Thanks and Regards,
Oracle1001

Answer 1

Sudhakar P wrote:
the below query its take more than one minute while updating the records through pro*c.
Execute 562238 161.03 174.15 7 3932677 2274833 562238Hi Sudhakar,
If the database is capable of executing 562,238 update statements in one minute, then that's pretty good, don't you think.
Your real problem is in the application code which probably looks something like this in pseudocode:
for i in (some set containing 562,238 rows)
loop
  <your update statement with all the bind variables>
end loop;If you transform your code to do a single update statement, you'll gain a lot of seconds.
Regards,
Rob.