> Writing queries and getting performance out of the DB, that can be rocket science. I tend to ask questions more about database internals, but it's a crucial

> Writing queries and getting performance out of the DB, that can be rocket science. I tend to ask questions more about database internals, but it's a crucial job for an engineer to understand how to get performance and integrity for their queries. Sometimes times you may get world-class DBA/DBE (my current employer is one of those places) who can do an engineer's job (in terms of tuning the queries, etc...) but that is really an engineer's job.