update and join code example

Example 1: update with inner join

UPDATE tb1
SET tb1.column_1 = tb2.column_1
FROM table_1 AS tb1
INNER JOIN table_2 AS tb2
ON tb1.column_2 = tb2.column_3

Example 2: update with join

UPDATE
        first_table ft
        JOIN second_table st ON st.some_id = ft.some_id
        JOIN third_table tt  ON tt.some_id = st.some_id
        .....
    SET
        ft.some_column = some_value
    WHERE ft.some_column = 123456 AND st.some_column = 123456