Question

I am using following queries to fetch random rows,

‘SELECT * FROM TABLENAME1 ORDER BY RAND() LIMIT 1‘ . this query will return random rows.But i need to get the name which is placed in another table.so here i have to use join queries.

‘SELECT tablename1.*,tablename2.name FROM tablename1 INNER JOIN tablename2 ON tablename1.id = tablename2.id ORDER BY RAND(tablename1.id)‘

The above queries return same rows everytime, I am not getting random rows.Kindly help me on this.

Answer 1

RAND(tablename1.id) uses tablename1.id as the seed for the pseudorandom number generator, so it will give you the same result every time. Try just using RAND() in your second query.