Insert records from a single to two related tables table

DB - 10G
OS - XP

We have thousands of records delimited by commas that we want to insert in a normalized table structure.

I created a group of test data that can be found at the end of this post.


I have csv files that look like this;

Donald, huey
Dewey, Donald
Donald, louie

And I want that data to be inserted into a table separate two like that;

table named PARENTS
parent_name PK
1 donald

Table named for CHILDREN
child_name fk PK
1 1 huey
1 2 dewey
1 3 louie


I built an insert query that looks like this;

INSERT ALL
IN parents (parent_id, parent_name) VALUES (parents_seq.nextval, parent_name)
IN children (children_id, parent_id, child_name) VALUES (children_seq.nextval, parents_seq.nextval, child_name)
SELECT parent_name, child_name
SOURCES;

And this has resulted in the following:

Table named PARENTS
PK child_name
1 DONALD
2 DONALD
3 DONALD

Table named PARENTS
child_name fk PK
1 1 HUEY
2 2 DEWEY
3 3 LOUIE

Anyone have any ideas on how I could accomplish this task?

This is some sample data;

[code]
Parents_seq SEQUENCE DROP;
Sources_seq SEQUENCE DROP;
Children_seq SEQUENCE DROP;
Sources of DROP TABLE.
DROP TABLE children;
Parents of DROP TABLE;

CREATE SEQUENCE PARENTS_SEQ MINVALUE MAXVALUE 1 1000000000000000000000000000 INCREMENT OF 1 START WITH 1 CACHE 20 ALL NOCYCLE.

CREATE THE PARENTS TABLE
(THE NUMBER (8) OF PARENT_ID NOT NULL)
PARENT_NAME VARCHAR2 (50 CHAR) NOT NULL,
CONSTRAINT PARENTS_PK PRIMARY KEY (PARENT_ID)
);

create or replace
PARENTS_BI RELAXATION
FRONT
INSERT OR UPDATE PARENTS
FOR EACH START OF LINE

IF THE INSERTION

IF: NEW. PARENT_ID IS NULL THEN
SELECT PARENTS_SEQ.nextval IN: NEW. PARENT_ID FROM dual;
END IF;

END IF;

END;
/


CREATE SEQUENCE SOURCES_SEQ MINVALUE MAXVALUE 1 1000000000000000000000000000 INCREMENT OF 1 START WITH 1 CACHE 20 ALL NOCYCLE.

CREATE TABLE SOURCES
(THE NUMBER (8) OF SOURCE_ID NOT NULL)
PARENT_NAME VARCHAR2 (50 CHAR) NOT NULL,
CHILD_NAME VARCHAR2 (50 CHAR) NOT NULL,
CONSTRAINT SOURCES_PK PRIMARY KEY (SOURCE_ID)
);

create or replace
SOURCES_BI RELAXATION
FRONT
INSERT OR UPDATE ON SOURCES
FOR EACH START OF LINE

IF THE INSERTION

IF: NEW. SOURCE_ID IS NULL THEN
SELECT SOURCES_SEQ.nextval IN: NEW. SOURCE_ID FROM dual;
END IF;

END IF;

END;
/

INSERT INTO SOURCES (PARENT_NAME, CHILD_NAME) VALUES ('DONALD', 'HUEY');
INSERT INTO SOURCES (PARENT_NAME, CHILD_NAME) VALUES ('DONALD', 'DEWEY');
INSERT INTO SOURCES (PARENT_NAME, CHILD_NAME) VALUES ('DONALD', 'LOUIE');
Commit;


CREATE SEQUENCE CHILDREN_SEQ MINVALUE MAXVALUE 1 1000000000000000000000000000 INCREMENT OF 1 START WITH 1 CACHE 20 ALL NOCYCLE.

FAST * CREATE TABLE *.
CREATE TABLE CHILDREN
(CHILDREN_ID NUMBER OF NON-NULL
, PARENT_ID NUMBER NOT NULL
CHILD_NAME VARCHAR2 (50 CHAR) NOT NULL,
CONSTRAINT CHILDREN_PK PRIMARY KEY (CHILDREN_ID)
);

create or replace
CHILDREN_BI RELAXATION
FRONT
INSERT OR UPDATE ON CHILDREN
FOR EACH START OF LINE

IF THE INSERTION

IF: NEW. CHILDREN_ID IS NULL THEN
SELECT CHILDREN_SEQ.nextval IN: NEW. CHILDREN_ID FROM dual;
END IF;

END IF;

END;
/

[code]

Looks like it's a way to do this:

insert into parents (parent_name) select distinct parent_name from sources;

select *
  from parents;
PARENT_ID              PARENT_NAME
---------------------- --------------------------------------------------
1                      DONALD

insert into children (parent_id, child_name)
select p.parent_id, s.child_name
  from sources s
  join parents p
    on (s.parent_name = p.parent_name);

select *
  from children;

CHILDREN_ID            PARENT_ID              CHILD_NAME
---------------------- ---------------------- --------------------------------------------------
1                      1                      HUEY
2                      1                      DEWEY
3                      1                      LOUIE

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