SQL Server Adding Sequence to Select Statement

Question

I have a Select statement that pulls customer information i.e. CustomerID, FirstName, LastName, etc.

I want to be able to assign a sales person to the best 100 customers ranked by sales.

I have the select statement set up to pull the best 100 customers, how would I add a column to the statement that numbers the customers in such a way:

SalesID 
1, 2, 3, 4, 1, 2, 3, 4...

Where my sales people ID is repeated over and over for all records.

Gordon Linoff · Accepted Answer · 2018-10-10 14:46:13Z

1

You can use row_number() and modulus arithmetic:

select t.*,
       1 + (row_number() over (order by . . . ) % 4)
from t
order by . . .

The . . . is for the ordering columns that specify "best". This should be the same for both order by clauses.

Note that some databases use mod() instead of %.

answered Oct 10, 2018 at 14:46

Gordon Linoff

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