select
case
when b.table_name is null then
'unindexed'
else
'indexed'
end as status,
a.table_name as table_name,
a.constraint_name as fk_name,
a.fk_columns as fk_columns,
b.index_name as index_name,
b.index_columns as index_columns
from
(
select
a.table_name,
a.constraint_name,
listagg(a.column_name, ',') within
group (order by a.position) fk_columns
from
dba_cons_columns a,
dba_constraints b
where
a.constraint_name = b.constraint_name
and
b.constraint_type = 'R'
and
a.owner = '&&schema_owner'
and
a.owner = b.owner
group by
a.table_name,
a.constraint_name
) a
,(
select
table_name,
index_name,
listagg(c.column_name, ',') within
group (order by c.column_position) index_columns
from
dba_ind_columns c
where
c.index_owner = '&&schema_owner'
group by
table_name,
index_name
) b
where
a.table_name = b.table_name(+)
and
b.index_columns(+) like a.fk_columns || '%'
order by
1 desc, 2;
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