在该表上存在导致重复的错误或者您需要使用DISTINCT。

Hi members,

I have a set of SQL Stored procedure to use partitioning for my ranking to get percentile. by doing the below partitioning I am able to get my percentiles data right. However my problem is there are duplicates in each row. E.g for each DESC there are multiple duplicates when it is suppose to be only 1 row. Why is this so?

row_nums AS 
	(
		SELECT DATE, DESC, NUM, ROW_NUMBER() OVER (PARTITION BY DATE, DESC ORDER BY NUM ASC) AS Row_Num
		FROM ******
	)
SELECT ................. 

There is a bug causing duplicates on that table or you need to use DISTINCT.