Sequence Number does not allowed here

Question

Hi,
I am inserting rows in a table called membership with seqence number membership_id.nextval. But i am getting error like
"Sequence number not allowed here"
Before i inserted about 3852 rows in that table
Here is the statement i am using
INSERT INTO MEMBERSHIP (membership_id,ACTIVIST_ID,G_N_ID,ROLE_ID,
REGION_ID,START_dATE,END_DATE,STATUS,state_id)
SELECT membership_id.nextval,a.activist_id,G.g_n_id,R.ROLE_ID,
'',mwlgmemship.start_date,'','Active',''
FROM activist a,
role r,
group_network g,
final.mwlgmemship mwlgmemship,final.mwlgmem mwlgmem
WHERE
a.first_name=mwlgmem.fname and a.last_name=mwlgmem.lname and a.c_zip_code=mwlgmem.czip and
a.c_country=mwlgmem.country and mwlgmem.person_id=mwlgmemship.person_id and
to_char(mwlgmemship.grno)=g.g_n_reference and mwlgmemship.role_id=r.role_id order by r.role_id
I could not understand the problem, please help me
I am selecting the other fields from other tables.
Thanks
Srinivas

Answer 1

Restrictions on Sequence Values You cannot use CURRVAL and NEXTVAL in the following constructs:
A subquery in a DELETE, SELECT, or UPDATE statement
A query of a view or of a materialized view
A SELECT statement with the DISTINCT operator
A SELECT statement with a GROUP BY clause or ORDER BY clause
A SELECT statement that is combined with another SELECT statement with the UNION, INTERSECT, or MINUS set operator
The WHERE clause of a SELECT statement
The DEFAULT value of a column in a CREATE TABLE or ALTER TABLE statement
The condition of a CHECK constraintAbove text is from the sql reference manual.
HTH
Regards
Raj