- The author concludes that ORMs are more detrimental than beneficial, suggesting they should augment SQL rather than replace it.
- Key issues with ORMs include attribute creep (wide tables), excessive foreign key joins, and inefficient data retrieval, requiring SQL knowledge for optimization.
- The dual-schema problem leads to redundant data definitions in databases and applications, complicating migrations and management.
- Entity identity mismatches between application memory pointers and database identifiers cause extra ORM manipulation overhead.
- Transaction handling in ORMs involves boilerplate code and dynamic scoping, clashing with lexical scoping paradigms.
- The author advocates viewing databases as data types with query APIs, moving away from object storage thinking, and recommends learning SQL directly.