Calling first query to get parameters for second query

Question

Newbie trying to convert an Oracle Report to BI. The report has 1 parameter from the user, which is plugged into a query that returns grouped data (4 values, 1 row). This data is then used in multiple places (not just where clause) in a second query to get the data for the report. Can anyone please point me in the right direction to accomplish this?
I have looked at using a before trigger possibly to get the first query values but am not sure how to then pass those values back to be used by the second query.
Thank you for ANY suggestions!

Answer 1

Hello,
you use any fields in additional querys as parameters.
If you use XML-data-template, it would look like this:
<dataTemplate name="INVOICE_REPORT" description="Invoice Report" Version="1.0">
  <parameters>
    <parameter name="P_INVOICE_HEADER_ID" dataType="number"/>
  </parameters>
  <dataQuery>
    <sqlStatement name="QUERY_INVOICE">
      <![CDATA[
select ivh.invoice_header_id    
     , ivh.invoice_number
     , ivh.customer_id           // here you select the field which is a parameter for next query
      -- ... additional fields ... --
  from tbl_invoices ivh
  where ivh.invoice_header_id = :P_INVOICE_HEADER_ID
    -- and additonal conditions --
]]>
    </sqlStatement>
    <sqlStatement name="QUERY_CUSTOMER">
      <![CDATA[
SELECT c.account_number
     , c.customer_name
     , c.customer_city
      -- ... additional fields ... --
  FROM tbl_customers c
  where c.customer_id = :CUSTOMER_ID // here is the parameter
    -- and additonal conditions --
]]>
    </sqlStatement>
  </dataQuery>
  <dataStructure>
    <group name="GRP_HEADER" source="QUERY_INVOICE">
      <element name="INVOICE_HEADER_ID" value="INVOICE_HEADER_ID"/>
      <element name="INVOICE_NUMBER" value="INVOICE_NUMBER"/>
      <group name="GRP_LINE" source="QUERY_INVOICE">
        <element name="ACCOUNT_NUMBER" value="ACCOUNT_NUMBER"/>
        <element name="CUSTOMER_NAME" value="CUSTOMER_NAME"/>
        <element name="CUSTOMER_CITY" value="CUSTOMER_CITY"/>
      </group>
    </group>
  </dataStructure>
</dataTemplate>          The behavoir is much similar to oracle report
Regards
Alexander
Edited by: alexander.steinbeisz on Dec 7, 2009 12:20 PM
Edited by: alexander.steinbeisz on Dec 7, 2009 12:21 PM