Solved

Default nextval(sequence)

Posted on 2006-10-30
3
2,627 Views
Last Modified: 2008-02-01
Hi I am want to alter primary key column to Default nextval(sequence)
I am getting fallowing error

ALTER TABLE emp
MODIFY(ID  DEFAULT nextval(SEQ_EMPNO))
ORA-00984: column not allowed here

Can you please tell me how to alter table with default value with squence

Thanks
0
Comment
Question by:basirana
3 Comments
 
LVL 8

Expert Comment

by:gvsbnarayana
ID: 17834281
Hi,
   This is not possible with default clause.
You will need to create a before insert trigger to accomplish this.
HTH
Regards,
Badri.
0
 
LVL 34

Accepted Solution

by:
johnsone earned 500 total points
ID: 17834305
create trigger emp_ins
on emp
before insert
for each row
begin
  select seq_empno.nextval
    into :new.id
    from dual;
end;
/
0
 
LVL 12

Expert Comment

by:jwahl
ID: 17834327
CREATE OR REPLACE TRIGGER EMP_IBR
 BEFORE INSERT
 ON EMP
 FOR EACH ROW
BEGIN
    IF :NEW.id IS NULL THEN
       SELECT seq_empno.nextval
       INTO   :NEW.id
       FROM   dual;
    END IF;
END;
/
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Working with Network Access Control Lists in Oracle 11g (part 1) Part 2: http://www.e-e.com/A_9074.html So, you upgraded to a shiny new 11g database and all of a sudden every program that used UTL_MAIL, UTL_SMTP, UTL_TCP, UTL_HTTP or any oth…
Subquery in Oracle: Sub queries are one of advance queries in oracle. Types of advance queries: •      Sub Queries •      Hierarchical Queries •      Set Operators Sub queries are know as the query called from another query or another subquery. It can …
This video explains at a high level about the four available data types in Oracle and how dates can be manipulated by the user to get data into and out of the database.
Via a live example, show how to restore a database from backup after a simulated disk failure using RMAN.

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question