Insert into two tables with a single query (same ID)

Question

Hello,
I want to insert two tables at the same time ( with a single query) provided that both records get inserted with the same id. How do I do this?
Table Movies
id
name
Table Category
movie_id
cat_typea) Insert into first table, retrieve the id (may be by using my_sequence.currval and then insert into another table.
issue: Makes three query to the db, I am also guessing that when multiple people try to insert there will be an issue, I might be wrong.
I don't have any other idea.
Greatly appreciated!

Answer 1

Why don't use multitable insert ? It's available from 9i.
A sequence.nextval will return the same value within the whole instruction
so all records can be inserted with the same id.
Look at this example:
DROP TABLE A;
DROP TABLE B;
drop sequence a_seq;
CREATE TABLE A(
  ID NUMBER,
  FIRSTNAME VARCHAR2(50)
CREATE TABLE B AS
SELECT id, firstname lastname FROM a;
CREATE SEQUENCE a_seq
START WITH 1;
INSERT ALL
INTO A(ID, FIRSTNAME) VALUES(A_SEQ.NEXTVAL, FNAME)
INTO B(ID, LASTNAME) VALUES(A_SEQ.NEXTVAL, LNAME)
SELECT 'fname ' || LEVEL FNAME, 'lname ' || LEVEL LNAME
FROM DUAL
CONNECT BY LEVEL < 10
COMMIT;
SELECT * FROM A;
SELECT * FROM b;
DROP TABLE A succeeded.
DROP TABLE B succeeded.
drop sequence a_seq succeeded.
CREATE TABLE succeeded.
CREATE TABLE succeeded.
CREATE SEQUENCE succeeded.
18 rows inserted
commited
ID                     FIRSTNAME                                         
3                      fname 1                                           
4                      fname 2                                           
5                      fname 3                                           
6                      fname 4                                           
7                      fname 5                                           
8                      fname 6                                           
9                      fname 7                                           
10                     fname 8                                           
11                     fname 9                                           
9 rows selected
ID                     LASTNAME                                          
3                      lname 1                                           
4                      lname 2                                           
5                      lname 3                                           
6                      lname 4                                           
7                      lname 5                                           
8                      lname 6                                           
9                      lname 7                                           
10                     lname 8                                           
11                     lname 9                                           
9 rows selected