Oracle SQL — Grouping aggregate function with analytic functions?

Question

I have SQL like this:

SELECT
  TO_CHAR(dateinvoiced, 'YYYY') AS year,
  TO_CHAR(dateinvoiced, 'MM') AS month,      
  name,
  SUM(reste) OVER (PARTITION BY name, ad_org_id) AS tot_reste_client,
  nameregion AS region
FROM
  table
GROUP BY
  TO_CHAR(dateinvoiced, 'YYYY'),
  TO_CHAR(dateinvoiced, 'MM'),      
  name,
  nameregion
ORDER BY name;

I get tried to put it in the GROUP BY clause and i get error like this "Is not group function",tried using HAVING and it tell me "window functions are not allowed here".

Couldn't find solution?, i'm using Oracle 12.

Answer 1

Analytic functions are calculated after GROUP BY/HAVING, so usually you can add aggregation to reste :

SELECT
  TO_CHAR(dateinvoiced, 'YYYY') AS year,
  TO_CHAR(dateinvoiced, 'MM') AS month,      
  name,
  SUM(SUM(reste)) OVER (PARTITION BY name, ad_org_id) AS tot_reste_client,
  nameregion AS region
FROM
  table
GROUP BY
  TO_CHAR(dateinvoiced, 'YYYY'),
  TO_CHAR(dateinvoiced, 'MM'),      
  name,
  nameregion
ORDER BY name;

But this should also fail due to ad_org_id , which is not in GROUP BY, maybe you can use a MIN(ad_org_id) .