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How to use ROW_NUMBER in sqlite? So that i can get result which is given below.
NoId || value
1 || yes
2 || yes
3 || yes
4 || yes
5 || yes
ROW_NUMBER AS NoId.
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A window function is a special SQL function where the input values are taken from a "window" of one or more rows in the results set of a SELECT statement.
SQLite supports the following 11 built-in window functions:
row_number()
The number of the row within the current partition. Rows are numbered starting from 1 in the order defined by the ORDER BY clause in the window definition, or in arbitrary order otherwise.
So your query could be rewritten as:
select *, ROW_NUMBER() OVER(ORDER BY Id) AS NoId
from data
where value = "yes";
db-fiddle.com demo
I mended somewhat with fiddleanswer and got exactly the result as expected
select id, value ,
(select count(*) from data b where a.id >= b.id and b.value='yes') as cnt
from data a where a.value='yes';
result
1|yes|1
3|yes|2
4|yes|3
6|yes|4
9|yes|5
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UPDATE: sqlite3 version 3.25 now supports window functions including:
row_number() over(order by id)
SQLITE3 Documentation
The ROW_NUMBER() windowing function can be done over an empty ORDER() like so (credit to @forpas):
select *, ROW_NUMBER() OVER() AS NoId
from data
where value = "yes";
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