hi,the code has been further modified as
test@ISNS>create table source (fsa varchar2(10),sal number);
Table created.
test@ISNS>create table target(seq_no number,fsa varchar2(10),rec_ct number);
Table created.
test@ISNS>insert into target(seq_no,fsa,rec_ct)
2 select SEQ_TAR.nextval, fsa, sum(sal)
3 from source group by fsa;
select SEQ_TAR.nextval, fsa, sum(sal)
*
ERROR at line 2:
ORA-02287: sequence number not allowed here
Kindly help me.