Top 20 % 2

[A11AR]

Hi all,

Can any one give me a breif idea that how to calculate top 20 % of the values.

I have stores which has got sales per year and i would like to get only top 20 % of the stores.

I would greatly apreciate the help

Thanks a lot

 

[GerardMcL]

To get the TOP 20% of rows according to your WHERE clause it is

SELECT TOP 20 PERCENT stores

Just new to TD but I think this should give you what your after

 

[dnoeth]

select *
from tab
qualify
percent_rank() over (order by sales desc) <= 0.2

Easy to enhance with PARTITION BY, e.g.
percent_rank() over (order by sales desc partition by year) <= 0.2

to get top 20% per year...

Dieter