in this case you might want to make a union clause in your sql statement.
split your sql statement so tha the top part before the union clause retirieves one part of the statement whilst the second sql statement retrieves the second part of the join.

it would go something like this

select * from table1 left outer join table2 ;
on table1.linkfield = table2.linkfield ;
into cursor blabla ;
union select * from table1 left outer join table3 ;
on table1.linkfield = table2.linkfield