I have a table that has some columns: User, Category, Value
And I want to make a query that will give me a ranking, of all the users by the value, but reset for the category.
Example:
user1 CategoryA 10
user2 CategoryA 11
user3 CategoryA 9
user4 CategoryB 3
user1 CategoryB 11
the query would return:
Rank User Category
1 user2 CategoryA
2 user1 CategoryA
3 user3 CategoryA
1 user1 CategoryB
2 user4 CategoryB
Any ideas?
I write the query and specify the Category, It works but then I have to write loops and its very slow.
Use "Partition by" in the ranking function OVER clause
SELECT
Rank() over (Partition by Category Order by Value, User, Category) as ranks,
Category, User
FROM
Table1
Group By
User, Category, Value
Order by
ranks asc