Script for master child relation

Question

we need script for maste child relation
if i insert or delete or update in master table it should reflect in child table after running procedure (not trigger).
fetch the value from master table and insert into child table using cursor.
for ex:
if i insert value in master table tab1 with column name emp_id, it should reflect other child table with the same column name emp_id.
insertions should only be done in master table. not in child table..
notes:it should be in cursor

Answer 1

hallo
This is our procedure.the procedure works fine for loop 3 with cursor c3.
The other cursor 1 and cursor 2 are not working fine. they are fetching duplicate values(ex:D10,D10........).
In this procedure we are fetching values from 3 tables and putting values in a single table.
please find the solution the code is given below.
code
create or replace procedure employee_insert
is
cursor c1 is
select * from department where
not exists (select null from employee where employee.department_id=department.department_id);
p1 department%rowtype;
cursor c2 is
select * from jobs where
not exists (select null from employee where employee.job_id=jobs.job_id or employee.job_title=jobs.job_title);
p2 jobs%rowtype;
cursor c3 is
select * from project where
not exists (select null from employee where employee.proj_id=project.proj_id or employee.proj_name=project.proj_name);
p3 project%rowtype;
begin
for p1 in c1
loop
for p2 in c2
loop
for p3 in c3
loop
insert into employee (EMPLOYEE_ID,EMPLOYEE_NAME,
department_id,department_name,
DATE_OF_BIRTH,job_id,job_title,
HIRE_DATE,
SALARY,proj_id,proj_name,
PHONE_NUMBER,
ADDRESS,EMAIL) values('E'||employee_id_seq.nextval,
dbms_random.string('A', 8),
p1.department_id,
p1.department_name,
TO_DATE(TRUNC(DBMS_RANDOM.VALUE(2452641,2452641+364)),'J'),p2.job_id,p2.job_title,
TO_DATE(TRUNC(DBMS_RANDOM.VALUE(2452641,2452641+364)),'J'),
Round(DBMS_Random.value(10,50)),
p3.proj_id,p3.proj_name,
'98'||'42'||Round(DBMS_Random.value(1000,5000)),
dbms_random.string('A', 20),
dbms_random.string('A', 8));
end loop;
end loop;
end loop;
Exception
When others then
raise_application_error(-20001,'An error was encountered - '||SQLCODE||' -ERROR- '||SQLERRM);
End;
execute employee_insert;
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