Calculated column in report studio

[kudikilla]

can anyone tell me how to create a calculated column from 2 diff dataitems. I used case statement to create one,

dataitem 1,
case
when ([product_cd]='xyz') then ([product_type])
end

but I cudnt see this data item showing values for repeated data from any other column placed along with this ..
for exmaple if I place this with order_id in the report it shows blank for one of the order_id if has repeated values

order_id     dataitem1
123             abc
123                 

can any one suggest why is this happening and wht shud be done to avoid this

[miwis]

Hi,

Could you explain more about order_id, product_cd and product_type?

Maybe order_id = 123 has more than one product_cd?? In this case it shows right values...

This case show only product_cd = 'xyz' - no other product_cd and no other product_type...

[kudikilla]

Hi,

the case statement is used to retrive tht  particular product_cd as another dataitem and showing in the list report along with order_id data item.

May be I was not clear ....

using the product_cd, I'm creating a calculated dataitems for few particular values in it (like xyz).
but after I create this calculated dataitem when I show up in report with order_id  for repeated values of order_id the dataitem is null for one of them...

[cognoshelp@ymail.com]

It may help you, try this..

change the Aggreagate function to none...which will prevents rollup.

can anyone tell me how to create a calculated column from 2 diff dataitems. I used case statement to create one,

dataitem 1,
case
when ([product_cd]='xyz') then ([product_type])
end

but I cudnt see this data item showing values for repeated data from any other column placed along with this ..
for exmaple if I place this with order_id in the report it shows blank for one of the order_id if has repeated values

order_id     dataitem1
123             abc
123                 

can any one suggest why is this happening and wht shud be done to avoid this

[miwis]

Hi,
Try this first:
Add product_cd to list and tell us what display cognos viewer...

order_id     dataitem1     product_cd 
123           abc             xyz
123           <null>          ??? - which value is displaying?

Have you applied any filters in query?
Data items are from one or more tables?
What kind of joins are between tables containing (order_id, dataitem1, product_cd) - if more than one table is used?