heluvaguy

SELECT cm_id,
@rnk:=IF(@preval <=> column, @rnk, @rnk + 1) AS rank,
@preval:=social_profile_score_absolute AS social_profile_score_absolute
FROM table
JOIN (SELECT @rnk := 1, @preval :=0) r
ORDER BY social_profile_score_absolute ASC

heluvaguy

SELECT id,
  @rnk:=IF(@preval <=> score, @rnk, @row + 1) AS dns_rnk,
  @row:= @row+1 AS rnk,
  @preval:=score as score
FROM table
# be careful for NULL handling.
# if all the values of score column are null, then dns_rank will zero.
# please set proper initial value for @preval based on your data.
JOIN (SELECT @rnk := 0, @preval :=null, @row := 0) r
ORDER BY score DESC

heluvaguy

-- SPLIT_STR MySQL Function
-- from http://blog.fedecarg.com/2009/02/22/mysql-split-string-function/

CREATE FUNCTION SPLIT_STR(
  x VARCHAR(255),
  delim VARCHAR(12),
  pos INT
)
RETURNS VARCHAR(255)
RETURN REPLACE(SUBSTRING(SUBSTRING_INDEX(x, delim, pos),