Trigger Compilation Error, Oracle 11g - triggers

Question

Banging my head up against this one for a while. I'm constructing a database on oracle 11g, and am attempting to insert a record into a "registry" table whenever a record is created on a "data product" table. The registry table needs to auto-increment the product_id, and then that product_id is used as a foreign key on the data product table. Here is my trigger code:
CREATE OR REPLACE TRIGGER "TR_CAMERA_DP_DPR_CREATE"
BEFORE INSERT ON "DD1"."CAMERA_DP"
FOR EACH ROW
BEGIN
:new.product_id := ID_SEQ.NEXTVAL;
insert into dd1.dp_registry
( product_id,
fs_location,
parent_group_id,
product_name,
shortdes,
createdate,
revision )
values
( :new.product_id,
'placeholder',
0,
'_image',
'description placeholder',
sysdate,
0
);
END;
So, ideally, an insert into dd1.camera_dp without providing a product_id will first insert a record into dd1.dp_registry, and then use that incremented product_id as the key field for dd1.camera_dp.
The insert statement works when run with a hard-coded value for :new.product_id, and ID_SEQ.NEXTVAL is also working properly. I get the feeling I'm missing something obvious.
Thanks!

Answer 1

Your code works perfectly well for me. If you're getting an error, there is something about the code that you are actually running from the code that you posted.
SQL> create table CAMERA_DP(
2 product_id number,
3 name varchar2(10)
4 );
Table created.
SQL> create sequence id_seq;
Sequence created.
SQL> ed
Wrote file afiedt.buf
1 create table dp_registry
2 ( product_id number,
3 fs_location varchar2(100),
4 parent_group_id number,
5 product_name varchar2(100),
6 shortdes varchar2(100),
7 createdate date,
8* revision number)
SQL> /
Table created.
SQL> ed
Wrote file afiedt.buf
1 CREATE OR REPLACE TRIGGER "TR_CAMERA_DP_DPR_CREATE"
2 BEFORE INSERT ON "CAMERA_DP"
3 FOR EACH ROW
4 BEGIN
5 :new.product_id := ID_SEQ.NEXTVAL;
6 insert into dp_registry
7 ( product_id,
8 fs_location,
9 parent_group_id,
10 product_name,
11 shortdes,
12 createdate,
13 revision )
14 values
15 ( :new.product_id,
16 'placeholder',
17 0,
18 '_image',
19 'description placeholder',
20 sysdate,
21 0
22 );
23* END;
24 /
Trigger created.
SQL> insert into camera_dp( name ) values( 'Foo' );
1 row created.
SQL> ed
Wrote file afiedt.buf
1* select product_id from dp_registry
SQL> /
PRODUCT_ID
----------
1
If you're getting an error that a table doesn't exist, the common culprits would be
You actually have a typo in the name of your table
You don't have permission to insert into the table. Note that if in your actual code, not everything is in the same schema, my guess would be that the user that owns the trigger has privileges to INSERT into the DP_REGISTRY table via a role rather than via a direct grant. Since priileges granted through a role are not available in a definer's rights stored procedure block, that would explain why you can do something at the command line but not in PL/SQL.