How to use other cols in group by which does not need grouping.

Question

HI,
saleshistory table has sales record of each empoly, day wise.
that is saleshistory has more than one record of empid in it.
empcode is number(9,0) and empname is varchar2(200), sales number(10,5),empid is number(10,0)
select empid, sum(sales), max(empname), max(empcode) from saleshistory
group by empid ;
or
select empid, sum(sales), empname,empcode from saleshistory
group by empid ,empname,empcode ;
i want to find the total amout of sales done by each employee with empid,empname,empcode in select list.
1) please tel me which method good which i should follow or is there any other good way to get it.
yours sincerely
Edited by: 944768 on Apr 20, 2013 5:14 AM
Edited by: 944768 on Apr 20, 2013 5:15 AM
Edited by: 944768 on Apr 20, 2013 5:15 AM
Edited by: 944768 on Apr 20, 2013 5:16 AM
Edited by: 944768 on Apr 20, 2013 5:34 AM
Edited by: 944768 on Apr 20, 2013 7:08 AM

Answer 1

Hi,
This sounds like a job for the analytic SUM function.
Since you didn't post CREATE TABLE and INSERT statements for your own table, I can't test with your table. I'll show how to do his using the scott.emp table instead. In scott.emp, there can any number of rows with the same job, just as in your table there can be any number of rows for the same empid.
SELECT       job
,       sal
,       SUM (sal) OVER  (PARTITION BY  job)     AS total_sal
FROM       scott.emp
ORDER BY  job
;Output:
JOB              SAL  TOTAL_SAL
ANALYST         3000       6000
ANALYST         3000       6000
CLERK           1300       4150
CLERK            950       4150
CLERK            800       4150
CLERK           1100       4150
MANAGER         2850       8275
MANAGER         2975       8275
MANAGER         2450       8275
PRESIDENT       5000       5000
SALESMAN        1500       5600
SALESMAN        1250       5600
SALESMAN        1250       5600
SALESMAN        1600       5600Most aggregate functions (like SUM) have analytic counterparts which can get the same results without collapsing the result set down to one row per group. The PARTITION BY clause of analytic functions corresponds to the GROUP BY clause used with aggregate functions.
944768 wrote:
... when we used GTT in Stored proc (SP) is it necessary to truncate it at the begining of sp , if one truncate can it create any harm, as SP is used by many people at the same time.This seems to be a completely separate question. Most of your message involved grouping and the SUM function; it has nothing to do with Global Temporary Tables or stored procedures. You might have an application that uses a stored procedure and a global temporary table, and which also uses groupng and the SUM function, but that doesn't mean you hve a problem that involves all of them. If the stored procedure problem has anything to do with the grouping problem, explain it. If it is a completely separate problem, then start aompletely separate thread or it (and explain it).
I hope this answers your question.
If not, point out where the query above is producing the wrong reslts, and explain, using specific examples, how you get the correct results in those places.
If you want to use your own table, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and the results you want from that data.
Always say what version of Oracle you're using (e.g. 11.2.0.2.0).
See the forum FAQ {message:id=9360002}