Question

Im trying to do something like the following:

UPDATE table SET fieldA='valueA' WHERE id='id1', SET fieldB='valueB' WHERE id='id2';

But cant seem to get it to work. Is there a way of doing this, or will I need to use two separate SQL commands?

Answer 1

If you really need to do it in one statement, you can use this:

UPDATE table 
    SET fieldA = case when id = 'id1' then 'valueA' else fieldA end, 
        fieldB = case when id = 'id2' then 'valueB' else fieldB end
WHERE id in ('id1', 'id2');

But for clarity (and thus maintainability), it would be much better to use two statements.