UPDATE syntax in SQLite

I need to know if I can do this in an UPDATE statement:

UPDATE users SET ('field1', 'field2', 'field3') 
VALUES ('value1', 'value2', 'value3');

Or similar syntax. I’m using SQLite.

Note:

Nobody understands me, I just want to know if it is possible to SET separate fields to separate values. That’s all.

Answer

There is a (standard SQL) syntax that is similar to what you propose but as far as I know, only Postgres has implemented it:

UPDATE users
SET  (field1, field2, field3)
   = ('value1', 'value2', 'value3') 
WHERE some_condition ;

Tested (for the infidels) in: SQL-Fiddle

---

This also works in Postgres:

UPDATE users AS u
SET 
   (field1, field2, field3)
 = (f1, f2, f3)
FROM
  ( VALUES ('value1', 'value2', 'value3')
  ) AS  x (f1, f2, f3)
WHERE condition ;

---

This works in Postgres and SQL-Server:

UPDATE users 
SET 
   field1 = f1, field2 = f2, field3 = f3
FROM
  ( VALUES ('value1', 'value2', 'value3')
  ) AS  x (f1, f2, f3)
WHERE condition ;

---

and as @JackDouglas commented, this works in Oracle:

UPDATE users
SET  (field1, field2, field3)
   = ( SELECT 'value1', 'value2', 'value3' FROM dual ) 
WHERE condition ;