Say you have table of some items with these two columns:
ItemName
Price
....where ItemName is unique.
How do you show sum of all prices for every ItemName (I'm using Oracle)? If I just try this:
SELECT ItemName,
SUM(Price)
FROM Items
I get this error:
ORA-00937: not a single-group group
function
...which goes a...
I'm trying to get a percentage of the itemid that are available in a certain area.
Using my query, I get an error ORA-00937: not a single-group group function
All the details:
I have these two tables:
ALLITEMS
---------------
ItemId | Areas
---------------
1 | EAST
2 | EAST
3 | SOUTH
4 | WEST
CURRENTITEMS
---...
HI I try to run :
select
year,
regr_slope(sum(sale_count),year) as slope,
from products
group by year
It throws "00937. 00000 - "not a single-group group function"" .When i delete year from select clause problem disapears. Shouldn't I be able to select column with which I'm grouping?
Oracle 11.2 sqldeveloper
ty for help !
...
I asked something similar a few days ago, here is my issue. My professor has phrased the following question: Find the average ratings of all movies playing at each theatre. Display the theatre name and the computed rating. Order the results ascending by rating.
Here is how my tables are structured:
CREATE TABLE Theatres (
Name var...