sql server - TSql Return column based on partition and rownumber -


i have sql server table i'm attempting computed column - mypartition - indicating number of partition based on variable @segment. example, if @segment = 3 following output true.

rowid  | rowname    | mypartition ------ | -----------| ------- 1      | prod 1  | 1 2      | prod 2  | 1 3      | prod 3  | 1 4      | prod 4  | 2 5      | prod 5  | 2 6      | prod 6  | 2 7      | prod 7  | 3 8      | prod 8  | 3 9      | prod 9  | 3 10     | prod 10 | 4

what have far like:

select      rowid,     rowname,     row_number() over(partition rowid order rowid asc) mypartition mytable order rowid

but can guess partition partitions on rowid giving values of mypartition = 1. unsure how structure partition clause achieve this.

how about

ceiling(row_number() over(order rowid asc) / 3.0)

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