There's a lot of simple improvements that could be made to the syntax. Some DBMSs (mostly Postgres) do make syntax improvements, but I'll never understand why O

There's a lot of simple improvements that could be made to the syntax. Some DBMSs (mostly Postgres) do make syntax improvements, but I'll never understand why Oracle still doesn't support "is <not> distinct from". If I want to do a join where null == null is true, I have to write (NOT (a <> b OR a IS NULL OR b IS NULL) OR (a IS NULL AND b IS NULL)) instead of "a is not distinct from b". The query structure is odd as well. I think it should more like from <tables> [declare] <calculations, scalar variables> [group by] [where] select Where declare is a section to declare variables (or virtual variables), so that you do not have to rewrite a calculation every time it is used. You could also declare scalar variables there. There's also no reason to have both a where and having clause.