Formatting Issue - datatables with one to many relationship

Question

Hi...
I am a newbie and I have designed a report in CR2008 and my datasource for the report is an XSD file. There are 2 tables Table A and B.
Table A is as follows:
AID     Name     Reference     Period          Manager
5       Name 1     Ref 1          July 2009     User Name 1
8     Name 2     Ref 2          August 2009     User Name 2
9     Name 3     Ref 3          March 2009     User Name 9
45     Name 4     Ref 4          May 2008     User Name 4
88     Name 5     Ref 5          June 2009     User Name 1
There are other coloumns too in the datatable, but that shouldnt matter.
Table B is as follows:
ID     A_ID     DateKey     DateValue          Name
1     5     Date1     2009-09-29 00:00:00.000     Start Date
2     5     Date2     2009-08-11 00:00:00.000     Fieldwork Complete
3     5     Date3     2009-08-14 00:00:00.000     Report Issued
4     5     Date4     2009-07-17 00:00:00.000     Report Finalised
5     5     Date5     2009-07-10 00:00:00.000     Close Date
6     8     Date1     2009-08-11 00:00:00.000     Start Date
7     8     Date4     2009-09-29 00:00:00.000     Report Finalised
I want the report to be in the following format:
ID     Name     Reference     Period     Manager     StartDate     Fieldwork          ReportIssue     Finalised      Closed
I have written a formula to display the date value where the date key matches for A_ID.
But when I run the report I get the result as follows:
ID     Name     Reference     Period     Manager     StartDate     Fieldwork          ReportIssue     Finalised      Closed
5     Name1     Ref1          July 2009     UName 1     29/09/2009                                   
                                        11/08/2009                                                                                          14/08/2009                                                                                          17/07/2009                                                                                     10/07/2009     

Answer 1

Hi
I tried what you suggested, but it hasnt worked.
In your code, you have used the date ID,
if {b.id} = 1 then
  formula = {b.datevalue}
end if
but the table contains dates from several A_IDs, and I want to get the dates for the respective A_ID, So shouldnt I be matching the A_ID's first? I also dont understand how the max function helps here?
My report is already grouped by Table A, ID.
My report should be a join of the two tables, a left outer join to be exact.
Also, if my XML data contains only one record for Table A, dates still come out in a separate line. I dont quite understand where the problem is?
Thank you...