what is for update in oracle code example

Example 1: oracle update with

UPDATE mytable t		-- Update using WITH statement
SET value3 = (
    WITH comp AS (
        SELECT id, value1
        FROM mytable t
        WHERE value2 > 10
    )
    SELECT c.value1
    FROM comp c
    WHERE c.id = t.id
);

Example 2: update oracle

UPDATE T_NAME
SET PARAM_1=23, PARAM_2=true
WHERE PARAM_7= 'something'