Splitting and executing the query for each 1 lac and executing parallel.

Hi All,
We have a table with around 10 keys and each key is having more than millions of records for a given date.
And my requirement is to find the sum of the sale_price of each keys.
( example :
Select key, sum(sale_price) from table1 where date1=sysdate
group by key
Since, each set of key contains more than a millions of records, It's time consumption is too high.
Is thr any way to achieve as below,
For key 1 (assume 1 million records)
and we will spilt these into 100 parts and execute parallelly.
At the end get sum of all 100 parts.
Similarly for other keys....
Is it possible to divide the records into 1 lac each and give it for parallel execution ?

If the key column is also the partition key, I would expect that to work well with parallel query. What have you tried that isn't working? Also what is your Oracle version?

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Issue While executing the Query for Pagination using ROWNUM with like

Issue While executing the Query for Pagination using ROWNUM with like.
Database is Oracle11G.
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1) SQL equal (=)
SELECT /*+ FIRST_ROWS(n) */ ROWNUM RNUM, A.* FROM LINE A
WHERE A.REFERENCE = 'KMF22600920'
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4) SELECT * FROM (
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b) Instead of two % in the above query, if use one example REFERENCE like 'KMF22600920%' it is returning the 2 resultsets (execution time 0.03313019 seconds)
Issue:- When using two % in like in the above query i.e. REFERENCE like '%KMF22600920%' AND ROWNUM <= 20 ) , it is going to infinite.
Could you please let us know what is the issue with two % used in like and rownum
5) Modified version of Option1 query (move out the RNUM condition AND RNUM <= 20)
SELECT * FROM (
SELECT /*+ FIRST_ROWS(n) */ ROWNUM RNUM, A.* FROM LINE A
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This would be easier to diagnose if there was an explain plan posted for the 'good' and 'bad' queries. Generally speaking using '%' on both sides precludes the use of any indexes.

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Hy, I have a query and a subquery(both of them are selects) and I want the outer query to be executed for each value returned by the subquery but the outer query has to return only one result.
For example, the following query is right for what I want?:
the following query finds out which authors live in the same city by looking at the postal code:
select au_fname, au_lname, city
from authors
where city = all
(select city
from authors
where postalcode like "946%")
I undertand the sentence "select au_fname, au_lname, city from authors where city=" will be executed for each value returned by "select city from authors where postalcode like "946%"". Is this right?
Thanks

Hi,
user13162080 wrote:
Hy, I have a query and a subquery(both of them are selects) and I want the outer query to be executed for each value returned by the subquery but the outer query has to return only one result. Sorry, I don't understand what you want. What if several rows in the table meet all the criteria? Do you only want some kind of summary of all of them?
Whenever you have a question, post a little sample data (CREATE TABLE and INSERT statements), and the results you want from that data.
For example, the following query is right for what I want?:
the following query finds out which authors live in the same city by looking at the postal code:
select au_fname, au_lname, city
from authors
where city = all
(select city
from authors
where postalcode like "946%")As I said earlier, I don't know what you want , but whatever it is, the query above is probably not the right way to get it.
Perhaps you meant "IN" instead of "= ALL", like this:
SELECT au_fname, au_lname, city
FROM      authors
WHERE      city     IN          -- ***NOT*** = all
          (   SELECT city
              FROM    authors
              WHERE   postalcode LIKE "946%"
I undertand the sentence "select au_fname, au_lname, city from authors where city=" will be executed for each value returned by "select city from authors where postalcode like "946%"". Is this right?No; the main query will be executed once, and the sub-query will be executed once. The rows in the main query will be compared to the results of the sub-query, to see if they will be included in the result set or not. This goes both for the original query you posted, and the modified version I posted.
InoL wrote:
Maybe I don't understand exactly what you want, or you gave a bad example. But your example is simply:
select au_fname, au_lname, city
from authors
where postalcode like '946%'
No; consider this data:
INSERT INTO authors (au_lname, city, postalcode) VALUES ('Virgil',     'Oakland',     '94601');
INSERT INTO authors (au_lname, city, postalcode) VALUES ('Steinbeck',     'Oakland',     NULL);
INSERT INTO authors (au_lname, city, postalcode) VALUES ('Grass',     'Emeryville',     '94608');What OP posted would return no rows, because nobody is in both 'Oakland' and 'Emeryville'.
What you posted would return 'Virgil' and 'Grass'.
What I posted would reutn all 3 rows, including Steinbeck, whose city is known to be related to a '946%' postalcode, even though his own postalcode is missing.
Edited by: Frank Kulash on Feb 9, 2011 1:06 PM

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Hi All,
Good evening.
i have requirement where i need to display the data in one block based on the selected items.
the scenario is like this...there are 2 LOV's and one apply button and one external region on the form.
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Edited by: Bharat on Jan 31, 2012 5:19 AM

Bharat wrote:
Hi All,
Good evening.
i have requirement where i need to display the data in one block based on the selected items.
the scenario is like this...there are 2 LOV's and one apply button and one external region on the form.
so when u select the lov values and click on apply button the query should execute based on this 2 lov values.
i am not getting how to achieve this..i am very new to oracle forms..Another way you can do this. Create a lov and don't assign it to any column just one return item (should be id).
Now create a button may be your "apply button" write two trigger when-button-press and when-mouse-click.
at When -Button-Press trigger, change the block state to 'ENTER-QUERY' and at when-mouse-click show the LOV and then write execute_query.
Hope this will help you.
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Hello Team
I have the table
create table sale (sale_id varchar2(32) not null, sale_epoch_microsec numeric(18,0)
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josh1612 wrote:
As in the question it's mentioned that the date is in microseconds,
So i need the guidence to convert that to the date .Convert microseconds to seconds and then you may be able to use the function below which was found here:
http://www.oracle.com/technology/pub/articles/oracle_php_cookbook/fuecks_dates.html
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Splitting and executing the query for each 1 lac and executing parallel.

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