[thorin]

Of course. At least in the UK and probably elsewhere large businesses, banks, government etc often have a large centralized systems based on a single or set of relational databases. A lot of the logic was controlled on the database either by constraints/checks etc or stored procedure access so it didn't have to to be replicated across the many disparate systems which connect to it. This is slowly changing, very slowly in some cases!

I can understand why that might be a surprise if you've been working for <10 years and mainly on new SAAS style products.