Sometimes we have a scenario where all the data that needs to be updated in TABLE1 is available in a different table TABLE2.

Here the situation is that we have more than one column to be updated in TABLE1 from TABLE2.

Your UPDATE query looks like below.

UPDATE TABLE1 A
  SET (COL11, COL12, COL13) =
      ( SELECT
        COL21, COL22, COL23
        FROM TABLE2 B
        WHERE B.COL20 = A.COL10
       )
WHERE  COL14    = 'A'
  AND  COL15    = 123
;

Note: You need to ensure that the TABLE2 retrieves only one row with the condition 
used to check from it. (WHERE  B.COL20 = A.COL10)

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