Sql server update multiple columns from another table

Question

I have read lots of post about how to update multiple columns but still can\'t find right answer.

I have one table and I would like update this table from another table.

Answer 1

TSQL does not support row-value constructor. Use this instead:

UPDATE table1 
SET a = t2.a,
    b = t2.b,
    (...)
FROM 
(
SELECT ..... with join ... WHERE .... 
) t2
WHERE table1.id = table2.id