mssql update with join code example
Example 1: how to add where command in update comand with joins
UPDATE A
SET foo = B.bar
FROM TableA A
JOIN TableB B
ON A.col1 = B.colx
WHERE ...
Example 2: 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;
Example 3: update with join sql server
UPDATE
t1
SET
t1.c1 = t2.c2,
t1.c2 = expression,
...
FROM
t1
[INNER | LEFT] JOIN t2 ON join_predicate
WHERE
where_predicate;
Example 4: 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