how would you do this: Tim … Tim … Henry … Henry … Henry

Question

Asked: June 18, 20262026-06-18T18:42:41+00:00 2026-06-18T18:42:41+00:00

how would you do this:

Tim   ...
Tim   ...
Henry  ...
Henry  ...
Henry ...

I have a table thatc ontains these names on the first column and I am interested in adding a new column X, that should have:

to count the number of distinct entries in the first column if you were to do the sum of the new column. Thank you!

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Editorial Team · Answer 1 · 2026-06-18T18:42:42+00:00

Editorial Team

You could use the following:

select name,
  1.0 / count(name) over(partition by name) as X
from yourtable

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