Demonstration
create table tq84_P (
id number(6),
val varchar2(10),
--
constraint pk primary key (id)
);
create table tq84_F (
id_p,
txt varchar2(20),
--
constraint fk foreign key (id_p) references tq84_P
);
insert into tq84_P values (1, 'one');
insert into tq84_F values (1, 'xyz');
Following statement throws ORA-02292: integrity constraint (RENE.FK) violated - child record found because TQ84_F has a record where id_p = 1:
delete from tq84_P where id = 1;
The following statement can be used to find the name and owner of the table with the primary key:
select
pk.owner pk_owner,
pk.table_name pk_table_name
from
dba_constraints fk join
dba_constraints pk on pk.owner = fk.r_owner and
pk.constraint_name = fk.r_constraint_name
where
fk.owner = 'RENE' and
fk.constraint_name = 'FK'
;
Cleaning up:
drop table tq84_F;
drop table tq84_P;