How do I UPDATE from a SELECT in SQL Server?

sql sql-server tsql select
jamesmhaley picture jamesmhaley · Feb 25, 2010 · Viewed 4.5M times · Source

In SQL Server, it is possible to insert rows into a table with an INSERT.. SELECT statement:

INSERT INTO Table (col1, col2, col3)
SELECT col1, col2, col3 
FROM other_table 
WHERE sql = 'cool'

Is it also possible to update a table with SELECT? I have a temporary table containing the values and would like to update another table using those values. Perhaps something like this:

UPDATE Table SET col1, col2
SELECT col1, col2 
FROM other_table 
WHERE sql = 'cool'
WHERE Table.id = other_table.id

Answer

Robin Day picture Robin Day · Feb 25, 2010 
UPDATE
    Table_A
SET
    Table_A.col1 = Table_B.col1,
    Table_A.col2 = Table_B.col2
FROM
    Some_Table AS Table_A
    INNER JOIN Other_Table AS Table_B
        ON Table_A.id = Table_B.id
WHERE
    Table_A.col3 = 'cool'

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