Which are the SQL improvements you are waiting for?

Question

Dealing with SQL shows us some limitations and gives us an opportunity to imagine what could be.

Which improvements to SQL are you waiting for? Which would you put on t

Answer 1

Implicit joins or what it should be called (That is, predefined views bound to the table definition)

SELECT CUSTOMERID, SUM(C.ORDERS.LINES.VALUE) FROM CUSTOMER C

A redesign of the whole GROUP BY thing so that every expression in the SELECT clause doesn't have to be repeated in the GROUP BY clause

Some support for let expressions or otherwise more legal places to use an alias, a bit related to the GROUP BY thing, but I find other times what I just hate Oracle for forcing me to use an outer select just to reference a big expression by alias.