SQL Joins vs Single Table : Performance Difference?

Question

I am trying to stick to the practice of keeping the database normalized, but that leads to the need to run multiple join queries. Is there a performance degradation if many quer

Answer 1

One of the ultimate hyperoptimizations available through some of the cloud sites is, in fact, using a smaller number of wider, limited-capability tables for efficiency. So far in the future if you need to wildly scale, this is one way. But it's not considered desirable practice for any relational dbms (which those aren't).

If you're having performance problems, there are a lot of things to work on first, before any kind of denormalizing.