Archive for March 9th, 2009
Analytic functions: NTILE
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In the previous article we dealt with analytic functions SUM
, AVG
and ROW_NUMBER()
.
Now we will try to emulate NTILE
.
NTILE(N)
is a special function that has no aggregate analog. It divides each grouping set of rows into N
subranges, based on ORDER BY
clause, and returns the subrange number for each row.
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