Reg:sequence

Question

Hi All,
I am using Oracle 10.2.
I had a query as:
SELECT schma1.ASN_IR_ID_SQ.NEXTVAL
*               INTO seq_11 FROM DUAL;*
when i run this query i am getting error as :
ora-     02289: sequence does not exist
Thanks

Answer 1

What a strange way to ask a question ;-)
But a fun topic.
Let's say SCHEMA1 has or has not created sequence ASN_IR_ID.
Now SCHEMA2 tries to use that:
SCHEMA2> select sequence_owner, sequence_name, user, p.privilege
  from dba_sequences s, dba_tab_privs p
where 1  = 1
   and s.sequence_name = 'ASN_IR_ID'
   and p.table_name(+) = s.sequence_name
   and p.owner(+) = s.sequence_owner
   and p.grantee(+) = user
no rows selected.
SCHEMA2> select schema1.asn_ir_id.nextval from dual
select schema1.asn_ir_id.nextval from dual
Error at line 1
ORA-02289: sequence does not existSo, the sequence does not exist, and SCHEMA2 gets ORA-02289: sequence does not exist
Now, SCHEMA1 creates the sequence, but grants no privilege to SCHEMA2.
SCHEMA1> create sequence ASN_IR_ID
Sequence created.Again SCHEMA2 tries to use that:
SCHEMA2> select sequence_owner, sequence_name, user, p.privilege
  from dba_sequences s, dba_tab_privs p
where 1  = 1
   and s.sequence_name = 'ASN_IR_ID'
   and p.table_name(+) = s.sequence_name
   and p.owner(+) = s.sequence_owner
   and p.grantee(+) = user
SEQUENCE_OWNER   SEQUENCE_NAME  USER         PRIVILEGE  
SCHEMA1          ASN_IR_ID      SCHEMA2                    
1 row selected.
SCHEMA2> select schema1.asn_ir_id.nextval from dual
select schema1.asn_ir_id.nextval from dual
Error at line 1
ORA-00942: table or view does not existNow all of a sudden, SCHEMA2 gets ORA-00942: table or view does not exist. Isn't that strange ?:|
P.S:
Off topic, of course things works once SCHEMA1 grants SELECT on the sequence to SCHEMA2
Regards
Peter
B-)