mysql - SQL 使用 View 更新表

Question

我有以下 SQL 代码:

SELECT
    `table1`.`field1`
    , `view1`.`newfield1`
FROM
    `table1`
INNER JOIN `GCOTDA2`.`view1` 
        ON (`table1`.`id1` = `view1`.`id1`) AND (`table1`.`id2` = `view1`.`id2`);

查询工作正常，但现在我想将 view1.newfield1 复制到 table1.field1。因此，我写下了以下声明:

UPDATE `table1`
SET
    `table1`.`field1` = `view1`.`newfield1`
FROM
    `table1`
INNER JOIN `view1` 
        ON (`table1`.`id1` = `view1`.`id1`) AND (`table1`.`id2` = `view1`.`id2`);

但是，更新不起作用，我收到此错误消息:

Error Code: 1064
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM
    `table1`
    INNER JOIN `view1` 
 ' at line 4

我检查了谷歌和本网站的其他问题，例如:How do I UPDATE from a SELECT in SQL Server?和 Error Code: 1064 in mysql没有运气。 (MySQL 服务器 5.5.27) 我需要有人照亮我，谢谢!

Answer 1

试穿一下尺码:

UPDATE 'table1` t JOIN `view1` v 
ON      t.id1 = v.id1 AND t.id2 = v.id2
SET     t.field1 = v.newfield1