In the mid-2010s I worked at a company that switched from using raw ints to refer to database rows to using (in C# terms) "Id<FooTable>".

Across the entire codebase, we discovered an entire class of bugs that only never cause any issues because all the important rows in all the important tables had Id 1 (e.g. Currency 1 was USD and Country 1 was USA) - so in a few places where the ints got mixed up, the correct row was still accidentally looked up in the wrong table).