mysql order by rand() performance issue and solution

Question

i was using order by rand() to generate random rows from database without any issue but i reaalised that as the database size increase this rand() causes heavy load on serve

Answer 1

Use your DB to find the max value from the table, generate a random number less than or equal to that value, grab the first row in which the id is greater than or equal to your random number. No PHP necessary.

SELECT items
FROM tablea
WHERE status = '0' and
      id >= FLOOR(1 + RAND() * (SELECT MAX(id) FROM tablea))
LIMIT 1