Answers for "update with a join"

SQL
5

inner join update

UPDATE 
    t1
SET 
    t1.c1 = t2.c2,
    t1.c2 = expression,
    ...   
FROM 
    t1
    [INNER | LEFT] JOIN t2 ON join_predicate
WHERE 
    where_predicate;
Posted by: Guest on September-11-2020
1

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
Posted by: Guest on January-21-2021
2

update from select join

UPDATE t1
SET t1.COL1 = t2.COL1, t1.COL2 = t2.COL2
FROM MY_TABLE AS t1
JOIN MY_OTHER_TABLE AS t2 ON t1.COLID = t2.ID
WHERE t1.COL3 = 'OK';
Posted by: Guest on May-09-2021
-2

SQL update with join

UPDATE D
SET D.Name = 'Computer Science and Engineering'
FROM Department D
INNER JOIN Student S ON D.Id = S.DepartmentId
Posted by: Guest on July-09-2021

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