how to combine rows in sql server procedure

1select id, a.name + coalesce('/'+b.name, '') + coalesce('/'+c.name, '')
2from myTable a
3left outer join myTable b on a.id=b.id and b.seqno = 2
4left outer join myTable c on a.id=c.id and c.seqno = 3
5where a.seqno = 1;
6