not a GROUP BY expression

hello all,

when i run the following query

Select MAX(BRANCH.NAME) BRNAME,
MAX(CUSTOMER.CUSTNAME) CUSTNAME,
MAX(Extn.Item_ID)
from CUSTOMER,BRANCH,Order
(Select OrdItm_A.Item_ID,
from OrdItm OrdItm_A
where
OrdItm_A.OrdID=Order.OrdID
) Extn
Where
extn.OrdID=Order.OrdID
Group by Branch.Branch_ID
/

It shows the following error though
i have put all the fields in MAX condition

Select MAX(BRANCH.NAME) BRNAME,
*
ERROR at line 1:
ORA-00979: not a GROUP BY expression


Thanx.

1) Comma missing after
from CUSTOMER,BRANCH,Order
this might explain the syntax error.

2) No join conditions on BRANCH and CUSTOMER => Cartesian product. I doubt if you want that.

3) It doesn't make sense to me, not to have Branch.Branch_ID in the Select clause - how do you know which result row referrs to which group?

Hi,

The group by should include BRANCH.NAME,CUSTOMER.CUSTNAME,Extn.Item_ID ALL THE 3.

Please check and get back of any errors are there as i have not tested this stuff i told you.

Regards,

Quote:

---

Originally posted by jigarpota
The group by should include BRANCH.NAME,CUSTOMER.CUSTNAME,Extn.Item_ID ALL THE 3.

---

Why?

Quote:

---

Originally posted by jigarpota
. . . i have not tested this stuff . . . .

---

Quite.

It should be group by BRANCH.NAME

I haven't been able to reproduce this diagnostic. I don't think it's worth spending more time on this, since santo didn't come back.

BTW, there's another error in the query:
OrdItm_A.OrdID=Order.OrdID