Gruppering af elementer med jævn fordeling i SQL

Du kan bruge ntile .

Noget eksempelkode:

declare @NumberOfStudents int
declare @StudentsPerGroup int

set @StudentsPerGroup = 10
set @NumberOfStudents = 104

select StudentID,
       ntile(@NumberOfStudents / @StudentsPerGroup) over(order by StudentID) as GroupID
from Students

Prøv det på SE-Data .