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

String Agregation on Group by (In Oracle is possible with this trick):

SELECT deptno, string_agg(ename) AS employees
FROM   emp
GROUP BY deptno;

DEPTNO EMPLOYEES
---------- --------------------------------------------------
    10 CLARK,KING,MILLER
    20 SMITH,FORD,ADAMS,SCOTT,JONES
    30 ALLEN,BLAKE,MARTIN,TURNER,JAMES,WARD