>

Use the detail query's Datasource property - link it to the datasource that
points to the master query. All you need to ensure the proper master-detail
behaviour (i.e. same as Mastersource & Masterfields) is to have identical
column names for the linking columns. You can use aliased column names in
the detail query if you need to.

>

When doing master-detail with a TIBOQuery as the detail it isn't column
names that match.
It is the input parameter name in the detail that must match a column name
in the master.

If there happens to be a column name in the detail that also matches, it
will plug in the value when doing an insert.

HTH,
Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com