select count(*)
from (
SELECT loyalty_id FROM transactions
GROUP BY loyalty_id
HAVING COUNT(*)>1
) as t
problem when writing the corresponding rails queries...? I am using Rails2.3.11
Also this have error select sum(points) from transactions where transaction_type ="new_customer" or transaction_type= "review" or transaction_type= "purchase" .
I tried like this Transaction.find(:id => :conditions =>["transaction_type = ? OR transaction_type = ? OR transaction_type = ?", ctype, ctype1,ctype2]).sum("points"). but it shows some ID error
Thnk you
vishnu