Show all rows in a dataTable - XSD datasource

Question

Hi
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
My report is a joining of the 2 tables as appears as below
ID   Name   Reference    Period     Manager      Start Date   Fieldwork    ReportIssued     ClosedDate
My problem, is that I want to display the values in Table A (ID, Name, Reference, Period etc) in the report even if there are no corresponding dates in Table B. Where there are no dates, the cell should be blank. (as below.)
ID     Name     Reference     Period     Manager            Start Date     Fieldwork     ReportIssued     ClosedDate
5     Name1     Ref1          July 2009     UserName1     29/09/2009     11/08/2009     14/08/2009     10/07/2009
8     Name2     Ref2          August2009  UserName9     11/08/2009     29/09/2009
88     Name5     Ref5          June 2009     UserName1
The report is grouped by AID, and I have written formulae to extract the dates. All the fields have been placed in the group footer and the dates are extracted as Max{@Start Date}
The report works well, if there is alteast one date for each A_ID.. I have set "Convert Database Null values to Default" in Report Options.
In the XML file that is passed, there can be cases where there are no rows in Table B. In this case, I still need the values of Table A to be extracted in the report.
Does anyone have any idea why this is happening.
Thanks
Tanya

Answer 1

Hi Tanya,
Try once with changing 'Join'  for both tables.
By default it will be "Inner join". Change that to "Left Outer" join.
DatabaseExpert>Links tab>Right click on Table link>Link options>In Join Type Select "Lefet outer Join" radio baox-->OK
Ragards,
Salah