Any one help me about my query

Question

select
count(*) as "total",
to_char(ea.revdt,'Mon') as "month",
prog.pro_code,
(sum(ea.amtapprop) / ea.amtapprop) as "totalAmount"
from csris_ea_m ea
join csris_progmon_m prog on ea.progmonid=prog.progmonid
group by to_char(ea.revdt,'Mon'), prog.pro_code

Answer 1

Hi,
in your query:
SELECT   COUNT(*) AS "total",
         TO_CHAR(ea.revdt, 'Mon') AS "month",
         prog.pro_code,
         (  SUM(ea.amtapprop)
          / ea.amtapprop) AS "totalAmount"
FROM     csris_ea_m ea JOIN csris_progmon_m prog ON ea.progmonid = prog.progmonid
GROUP BY TO_CHAR(ea.revdt, 'Mon'),
         prog.pro_codesince you have a group by, you cannot an expression like "SUM(ea.amtapprop)/ ea.amtapprop)" (a grouping column wihtin a non grouping expression)
You can do your query in 2 steps:
WITH q1 AS
     (SELECT TO_CHAR(ea.revdt, 'Mon') AS MONTH,
             prog.pro_code,
             ea.amtapprop
      FROM   csris_ea_m ea JOIN csris_progmon_m prog ON ea.progmonid = prog.progmonid
     q2 AS
     (SELECT   COUNT(*) total,
               MONTH,
               pro_code,
               SUM(ea.amtapprop)
      FROM     q1
      GROUP BY TO_CHAR(ea.revdt, 'Mon'),
               prog.pro_code)
SELECT q1.*,
       total,
         total
       / q1.amtapprop
FROM   q1,
       q2
WHERE  q1.MONTH = q2.MONTH
AND    q1.pro_code = q2.pro_codeor use an analytic function:
with t as
(select 1 c1,1 c2 from dual union all
select 1 c1,2 c2 from dual union all
select 1 c1,3 c2 from dual union all
select 3 c1,10 c2 from dual union all
select 2 c1,8 c2 from dual union all
select 2 c1,4 c2 from dual)
SELECT c1,
       c2,
       SUM(c2) OVER(PARTITION BY c1) tot,
         SUM(c2) OVER(PARTITION BY c1)
       / c2 div
FROM   t
C1     C2     TOT     DIV
1     1     6     6
1     2     6     3
1     3     6     2
2     8     12     1.5
2     4     12     3
3     10     10     1Edited by: user11268895 on Aug 25, 2010 1:25 PM