Multiple Ranks in one table

Question

I need the following, Can anyone please help me do it.

Rank   Cust_Type   Cust_Name   Revenue
1      Top         A           10000
2      Top         B               


        

Answer 1

For JOIN tables problem, I found a solution.

I create a temporary table, this way MySQL maintain the order of value that I want to rank.

DROP TEMPORARY TABLE IF EXISTS tmp_mytable;

CREATE TEMPORARY TABLE tmp_mytable ENGINE = MEMORY
    SELECT mytable.id AS id,
           mytable.login AS Login,
           cliente.myrank_id AS id_myrank,
           mytable.rankvalue AS rankvalue
    FROM mytable
   INNER JOIN myjoin ON (mytable.id_myjoin = myjoin.id)
    ORDER BY 3, 4 DESC;

SELECT id, login, IFNULL(id_myrank, 0) AS id_myrank, rankvalue,
       @rank := IF(@prev_born = IFNULL(id_myrank, 0), @rank + 1, 1) AS ranking,
       @prev_Born := IFNULL(id_myrank, 0) AS fake_field
FROM tmp_mytable, (select @prev_born := 0, @rank := 0) r
-- HAVING ranking < 20;

*PS: I tried with View creation, but insn't work too.