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7.4

Do max and sum together in one query..

Asked by mahjag in Perforce, DB2 Database

I have a column in oracle that I am using to create a query and this column has value
sum(user_count + data_count)/300 when application reads this query it will use to create the following query

select sum(user_count + data_count) as count_per_sec,datetime from tableA group by datetime
where datetime >='2009-01-00.00.00' and datetime < '2009-02-01-00.00.00'
Now I need to get the max value from the datetime period and I dont want to change the query that reads the custom column from oracle what value then should I need to change the column that will reflect the max value ?
I tried to change the column as max(sum(user_count + data_count)/300 ) as max_value but I got the error when I ran the query in db2
SQL0112N  The operand of the column function "MAX" includes a column function,
a scalar fullselect, or a subquery.  SQLSTATE=42607

Let me know how to resolve this?
[+][-]03/30/09 02:33 PM, ID: 24023608Assisted Solution

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[+][-]03/30/09 02:49 PM, ID: 24023784Accepted Solution

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Zones: Perforce, DB2 Database
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Solution Provided By: daveslash
Participating Experts: 2
Solution Grade: B
 
[+][-]03/31/09 06:55 AM, ID: 24028930Author Comment

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