데이터베이스 내에서 현재 사용자가 접근 권한을 가진 클래스에 대해 상위 클래스가 존재하면 그 클래스명을 보여준다.
속성명 |
데이터 타입 |
설명 |
---|---|---|
class_name |
VARCHAR (255) |
클래스명 |
super_class_name |
VARCHAR (255) |
한 단계 상위 클래스명 |
CREATE VCLASS db_direct_super_class (class_name, super_class_name)
AS
SELECT c.class_name, s.class_name
FROM _db_class c, TABLE(c.super_classes) AS t(s)
WHERE (CURRENT_USER = 'DBA' OR
{c.owner.name} subseteq (
SELECT set{CURRENT_USER} + coalesce(sum(set{t.g.name}), set{})
from db_user u, table(groups) as t(g)
where u.name = CURRENT_USER ) OR
{c} subseteq (
SELECT sum(set{au.class_of})
FROM _db_auth au
WHERE {au.grantee.name} subseteq (
SELECT set{CURRENT_USER} + coalesce(sum(set{t.g.name}), set{})
from db_user u, table(groups) as t(g)
where u.name = CURRENT_USER ) AND
au.auth_type = 'SELECT'));
csql> select super_class_name
csql> from db_direct_super_class
csql> where class_name = 'female_event';
csql> ;xrun
=== <Result of SELECT Command in Line 1> ===
super_class_name
======================
'event'
csql> select c.class_name, s.super_class_name
csql> from db_class c, db_direct_super_class s
csql> where c.class_name = s.class_name and
csql> c.owner_name = user
csql> order by 1;
csql> ;xrun
=== <Result of SELECT Command in Line 1> ===
class_name super_class_name
============================================
'female_event' 'event'
.