mysql - Find avg of rating for each item -

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i have table feilds : file_id, rating, user_id

there 1 rating per user_id, there many rating (in scale of 0-5) single file_id.

i want find avg of ratings every file_id , display 5 file_id highest avg rating.

actually sql query looks like: 

select m.server_domain, m.original_name, m.type, m.title, m.views,      m.description, m.hash, avg(mr.rating_scale5) avg_rating_scale5  c7_media m, c7_storage s, c7_media_ratings mr  s.public=1 , m.storage_hash = s.hash , m.hash = mr.media_hash group mr.media_hash

how should this?

zeeshan

group file_id , order average. cut off records fall below top 5.

select      file_id, avg(rating) avg_rating       table  group      file_id  order      avg_rating desc  limit 5

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