Access - query update with Inner Join

问题

I have this query:

UPDATE client
SET client.[client_history] = 10
FROM  [T_CLIENT] AS client
     INNER JOIN (SELECT [client_id], SUM([final_price])
            FROM [T_PURCHASE]
            GROUP BY [client_id]) AS p
     ON client.[client_id] = p.[client_id]

When i execute this query on access, i get "Syntax Error". Did you see something wrong?

Thank you

回答1:

You can use a DSUM to sum from a different table in an update query. Subqueries with aggregates won't work, because they're not updateable.

UPDATE t_client
SET [client_history] = DSUM("final_price", "T_PURCHASE", "client_id = " & client_id)

回答2:

Does the syntax work without FROM:

UPDATE [T_CLIENT] AS client INNER JOIN
       (SELECT [client_id], SUM([final_price])
        FROM [T_PURCHASE]
        GROUP BY [client_id]
       ) AS p
      ON client.[client_id] = p.[client_id]
    SET client.[client_history] = 10;

来源：https://stackoverflow.com/questions/50091046/access-query-update-with-inner-join