If you know SQL and know the ORM, you can just do the complicated things in SQL. If you know a problem is going to be complicated, you know to use SQL. If you

If you know SQL and know the ORM, you can just do the complicated things in SQL. If you know a problem is going to be complicated, you know to use SQL. If you don't know if a problem is going to be complicated, you can default to SQL and decide to use the ORM later if it's a good fit once you've got more problem details.