database - Multiple "details" sections under a group in Access -

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my data organized so:

  • root task
    • subtask1
  • root task2
    • subtask2
  • root task3

when creating report in access, grouping root task , adding subtask under details seems work, roottask3 not show because there no subtask refers it.

how organize report/grouping such shows root tasks if not have subtasks?

the default inner join shows rows there matching record in other table, left join in query used select data give row main table, if there no matching record in secondary table.

if @ sql view of query, see join.
if looking @ query in default design mode, right click , select join properties choose records returned.


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