On 2021-02-21 18:28, Brahim Mohamed wrote:
> I use a selecting view in my client app and added the row_number
> function in order to have a sequential field for a pagination records
> but I get message : "multiple rows in single select" I know I can do
> that in a sp but it is to late to change queries. Is it possible to do
> that in a view please ?.
The error is not surprising, because a sub-query in a select column list
may only produce a single value, and `(SELECT ROW_NUMBER() OVER (ORDER
BY COMMANDE_ID DESC) AS RN FROM COMMANDE_CLIENT)` will produce as many
rows as there are rows in COMMANDE_CLIENT.
It is unclear exactly what you are trying to achieve (or at least, I
don't understand why you introduced that sub-query), but using
`ROW_NUMBER() OVER (ORDER BY COMMANDE_ID DESC) AS RN` instead of the
sub-query will probably do what you want.