使用内部联接查询mysql更新语法错误

Question

我的查询：

UPDATE i SET i.CurStock = i.CurStock-g.Qty  
    FROM inv_inventarymaster AS i INNER JOIN inv_goodsissue AS g  
    ON  i.ItemName = g.ItemName WHERE g.DATE='2014-03-20';

错误：

  

您的SQL语法有错误;检查对应的手册   到您的MySQL服务器版本，以便在＆＃39; FROM附近使用正确的语法   inv_inventarymaster as i INNER JOIN inv_goodsissue as g ON＆＃39;在第1行

请帮助我找到正确的语法。

Answer 1

试试这个......没有经过测试但是作为MYsql http://dev.mysql.com/doc/refman/5.0/en/update.html

UPDATE inv_inventarymaster AS i INNER JOIN inv_goodsissue AS g SET 
i.CurStock = i.CurStock-g.Qty 
WHERE i.ItemName = g.ItemName and g.DATE='2014-03-20';

Answer 2

在Mysql FROM查询中使用UPDATE不正确。

您可以使用此类查询

UPDATE inv_inventarymaster AS i 
INNER JOIN inv_goodsissue AS g  ON i.ItemName = g.ItemName 
SET i.CurStock = i.CurStock-g.Qty  
WHERE g.DATE='2014-03-20';