Reg : EXISTS function in OBIEE

Question

Hi all,
I have a req where the condition for a column is as below
select count(distinct shipment_header_id) from F_ERP_PO_RECEIPTS a
where exists (select 'X' from F_ERP_PO_RECEIPTS_TRX b
              where b.TRANSACTION_TYPE = 'RECEIVE'
              and b.shipment_line_id = a.shipment_line_id)
and not exists (select 'X' from F_ERP_PO_RECEIPTS_TRX b
              where b.TRANSACTION_TYPE = 'DELIVER'
              and b.shipment_line_id = a.shipment_line_id)
where F_ERP_PO_RECEIPTS_TRX and F_ERP_PO_RECEIPTS are my fact tables.
How do i apply this condition in the column level in obiee ..
Pls help me in resolving the same .
Thanks in advance
Reg,
Niv

Answer 1

Hi,
Please try this,
Right Click on your Schema -> Select New Physical Table
Give the name of the Physical table as Dim_ERP_PO_RECEIPTS_HEADER_INFO
Select "SELECT" from the Table Type dropdown
Write your query as it is here:
select distinct header_id from F_ERP_PO_RECEIPTS a
where exists (select 'X' from F_ERP_PO_RECEIPTS_TRX b
              where b.TRANSACTION_TYPE = 'RECEIVE'
              and b.shipment_line_id = a.shipment_line_id)
and not exists (select 'X' from F_ERP_PO_RECEIPTS_TRX b
              where b.TRANSACTION_TYPE = 'DELIVER'
              and b.shipment_line_id = a.shipment_line_id)
Make a physical join between F_ERP_PO_RECEIPTS -> Dim_ERP_PO_RECEIPTS_HEADER_INFO on header_id
Create a new LTS in the logical table of the Fact F_ERP_PO_RECEIPTS
Pull the Dim_ERP_PO_RECEIPTS_HEADER_INFO in the General tab of the LTS
Create a new Logical Column with HEADER_COUNT name
Double click on it
In the Column Source tab -> Select the new LTS you have created above -> Edit Expression
Give the formula as Dim_ERP_PO_RECEIPTS_HEADER_INFO.Header_id
Aggregation as Count or Count distinct
Please mark, if it is helpful
Thanks,
Srikanth