mysql update where select code example

Example 1: mysql update from select

UPDATE t1
SET t1.COL1 = t2.COL1, t1.COL2 = t2.COL2
FROM MY_TABLE AS t1
INNER JOIN MY_OTHER_TABLE AS t2 ON t1.COLID = t2.ID
WHERE t1.COL3 = 'OK';

Example 2: mysql update query

UPDATE table_name SET field1 = 'value 1', field2 = 'value 2'
WHERE field3 = 'value 3'