Question

Can someone help me with this query.
I have this table for sample:

FILE Table

• UID
• file
• uploaded_on_date
• view_count

What I want to consider is the top 30 most recent uploaded file and top 30 most viewed file then randomly select from them and limit by 10.

I am new to this mysql complex queries. A sample query would be good and i will be able to understand it.
Thanks.

Answer 1

SELECT 
  *
FROM 
(
SELECT
  *
FROM
  tablefile
ORDER BY
  uploaded_on_date DESC
LIMIT 30
UNION SELECT
 *
FROM
  tablefile
ORDER BY
  view_count DESC
LIMIT 30
)
ORDER BY 
   RAND()
LIMIT 10;