Count how many times the data appear in a table

Question

i have a field which name is “account” and its varchar type,this field have data that can repeat or can only apear once, i need that other field called “consecutive” counts how many times does the data in “account” apears, i can't do it manually because i have lots of data.

This is an example of what i have

Account Consecutive
24590   1
24590   1
23789   1
23789   1
23789   1
98789   1
98789   1
89768   1
89768   1
15678   1
15678   1
14356   1

This is what i need Account Consecutive

24590   1
24590   2
23789   1
23789   2
23789   3
98789   1

Answer 1

We don't have much to work with here but pretty sure you need something along these lines. (This of course assumes that you are using sql-server)

select Account
    , Consecutive = ROW_NUMBER() over (partition by Account, order by (select null))
from SomeTable