I am selecting almost 90 columns from 15 different tables, there are about 25 millions record in one table and almost the same number of records in other two tables as well.
All the tables have got relationships between them. and are joined through primary keys and are inner joined.
I am trying to retreive top 100 records and it is taking forever and not giving me any results evern after 10 minutes.
Any help would be highly appreciated.