script takes a long time to run

Hi friends,

We have a record of leave in the following way:

name date leaves

----- ----- -------

ABC 1 October 08 1

ABC 2 October 08 1

ABC 3 October 08 1

ABC October 4 08 1

ABC 5 October 08 1

ABC 10 October 08 1

ABC 18 October 08 1

ABC, 19 October 08 1

ABC 20 October 08 1

ABC October 25 08 1

ABC 26 October 08 1

ABC 27 October 08 1

ABC October 28 08 1

and we need an output in the following way:

output

-------

Name FromDate date leaves

---- -------- ------ -------

ABC 1 October 08 5 October 08 5

ABC October 10 08 10 October 08 1

ABC 18 October 08 20 October 08 3

ABC 25 October 08 28 October 08 4

The previously mentioned code logic is the following:

=======================================================

=======================================================

procedure KPM_AB_LWP_PROC (p_err_buf OUT VARCHAR2, p_ret_code OUT NUMBER) is

number of diff;

date of prev_date;

date of p_prev_date;

date first_date;

date of last_date;

date DT;

total_leaves number: = 0;

ECODE varchar2 (20);

Ename varchar2 (240);

cursor ab_lwp_cur (the process_from_date date, process_to_date date, e_code varchar2) is

Select

AB. EMPCODE,

AB. RECORD_DATE,

AB. FIRST_HALF,

AB. SECOND_HALF,

(em.last_name |) ', ' || EM. TITLE | ' '|| EM. FIRST_NAME. EM. EMP_NAME MIDDLE_NAME)

Of

kpm_hr_absent_record ab, kpm_hr_emp_mst em

where

AB. EMPCODE = em. EMPCODE

(AB. FIRST_HALF in ("AB", "LWP") or ab. SECOND_HALF ("AB", "LWP"))

and ab. EMPCODE as e_code

and ab.record_date between process_from_date and process_to_date;

cursor active_emp is

Select empcode

of kpm_hr_emp_mst

When status = 'Active'.

order by empcode;

Start

for emp loop active_emp

Start

Select min (ab. RECORD_DATE), max (ab. RECORD_DATE)

in prev_date, last_date

kpm_hr_absent_record AB

where (ab. FIRST_HALF in ("AB", "LWP") or ab. SECOND_HALF ("AB", "LWP"))

and ab. EMPCODE as emp.empcode;

exception

while others then

prev_date: = null;

last_date: = null;

end;

DT: = prev_date;

FND_FILE. PUT_LINE (FND_FILE. OUT, 'salaried worker | Chr (9) | Chr (9) | "Name" | Chr (9) | Chr (9) | 'Count '. Chr (9) | Chr (9) | "To this day". Chr (9) | Chr (9) | 'Sheets' total);

FND_FILE. PUT_LINE (FND_FILE. OUT,'-'. Chr (9) | Chr (9) | '-----' || Chr (9) | Chr (9) | '----------' || Chr (9) | Chr (9) | '---------' || Chr (9) | Chr (9) | '-------------');

While dt & lt; = last_date loop

first_date: = dt;

total_leaves: = 0;

for m loop (prev_date, last_date, emp.empcode) ab_lwp_cur

ECODE: = m.empcode;

Ename: = m.emp_name;

diff: = m.record_date - prev_date;

If diff = 0 then

If m.first_half ("AB", "LWP") then

total_leaves: = total_leaves + 0.5;

end if;

If m.second_half ("AB", "LWP") then

total_leaves: = total_leaves + 0.5;

end if;

prev_date: = prev_date + 1;

on the other

prev_date: = m.record_date;

GoTo print_leave;

end if;

p_prev_date: = prev_date-1;

end loop;

& lt; & lt; print_leave & gt; & gt;

If total_leaves & gt; 0 then

FND_FILE. PUT_LINE (FND_FILE. OUTPUT, ecode | Chr (9) | Chr (9) | Ename | Chr (9) | Chr (9) | first_date | Chr (9) | Chr (9) | p_prev_date | Chr (9) | Chr (9) | total_leaves);

end if;

DT: = prev_date;

end loop;

end loop;

exception

while others then

FND_FILE. PUT_LINE (FND_FILE. JOURNAL,' error: '. SQLERRM);

end KPM_AB_LWP_PROC;

=======================================================

=======================================================

The problem is that this code takes about 24 hours to run, which is not accepted.

Please suggest another technique to apply the same logic.

For your reference, the KPM_HR_ABSENT_RECORD table has about 3,75,000 files inside.

Also, we have created a few clues about certain column as recommended by explaining the plans.

Thanks in advance

Ankur

with t as (select 'ABC' as nm, to_date('01-oct-08','dd-mon-yy') as dt, 1 as leaves from dual union all
               select 'ABC',to_date('02-oct-08','dd-mon-yy'), 1 from dual union all
               select 'ABC',to_date('03-oct-08','dd-mon-yy'), 1 from dual union all
               select 'ABC',to_date('04-oct-08','dd-mon-yy'), 1 from dual union all
               select 'ABC',to_date('05-oct-08','dd-mon-yy'), 1 from dual union all
               select 'ABC',to_date('10-oct-08','dd-mon-yy'), 1 from dual union all
              select 'ABC',to_date('18-oct-08','dd-mon-yy'), 1 from dual union all
               select 'ABC',to_date('19-oct-08','dd-mon-yy'), 1 from dual union all
               select 'ABC',to_date('20-oct-08','dd-mon-yy'), 1 from dual union all
              select 'ABC',to_date('25-oct-08','dd-mon-yy'), 1 from dual union all
              select 'ABC',to_date('26-oct-08','dd-mon-yy'), 1 from dual union all
              select 'ABC',to_date('27-oct-08','dd-mon-yy'), 1 from dual union all
              select 'ABC',to_date('28-oct-08','dd-mon-yy'), 1 from dual)
   -- end of sample data
select nm, min(dt), max(dt), sum(leaves)
from
(
   select nm, dt, max(group_id) over(partition by nm order by dt) group_id
            , leaves
   from
   (
      select nm, dt, case when trunc(dt) - 1 != lag(trunc(dt),1,trunc(dt))
                                                                 over(partition by nm order by dt)
                           then rownum
                           end group_id
             , leaves
      from t
   )
)
group by nm, group_id
order by 1,2;

I hope this helps.

@Blushadow, thanks a lot for the test data.

Concerning

REDA

PS: For more information visit this link
http://www.Oracle.com/technology/oramag/Oracle/04-Mar/o24asktom.html

and search this page for "Analytical to the rescue (again)".

Published by: R.Subramanian on October 22, 2008 04:52
Account function has changed function Sum

Tags: Database

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