SQL用MAX值替换列

Question

In Oracle SQL how can a get a table replacing a column's value with the MAX?

I have:

ID      Val
======= =======
1       10
2       19
3       55
4       40

And I want:

ID      Val
======= =======
1       55
2       55
3       55
4       55

I tried:

SELECT    id, MAX(Val)
FROM      table;

But it's complaining about the GROUP BY , if I add it for id it will return the original table.

Answer 1

Use a window function:

SELECT id, MAX(Val) OVER ()
FROM table;