mysql从另一个表更新查询

我想从名为updated table的临时表中更新products表中的一些字段

到目前为止，我有这个，但我有一个sql错误，我不能找到它是什么，虽然

UPDATE destination 

SET destination.title = source.title, 
destination.title_tag = source.title_tag,
destination.keywords = source.keywords

FROM updated_table AS source

JOIN products AS destination ON source.id = destination.id

---

您的查询有问题。尝试以下查询：

UPDATE destination 

SET title = source.title, 
title_tag = source.title_tag,
keywords = source.keywords

FROM updated_table AS source

JOIN products AS destination ON source.id = destination.id

---

您的查询有问题。尝试以下查询：

UPDATE destination 

SET title = source.title, 
title_tag = source.title_tag,
keywords = source.keywords

FROM updated_table AS source

JOIN products AS destination ON source.id = destination.id

ANSI解决方案：

UPDATE
 products destination
SET
 destination.title = (SELECT title FROM updated_table source WHERE destination.id = source.id),
 destination.title_tag = (SELECT title_tag FROM updated_table source WHERE destination.id = source.id),
 destination.keywords = (SELECT keywords FROM updated_table source WHERE destination.id = source.id)

UPDATE
 products destination
JOIN
 updated_table source
ON
 source.id = destination.id
SET
 destination.title = source.title, 
 destination.title_tag = source.title_tag,
 destination.keywords = source.keywords

MySQL解决方案：

UPDATE
 products destination
SET
 destination.title = (SELECT title FROM updated_table source WHERE destination.id = source.id),
 destination.title_tag = (SELECT title_tag FROM updated_table source WHERE destination.id = source.id),
 destination.keywords = (SELECT keywords FROM updated_table source WHERE destination.id = source.id)

UPDATE
 products destination
JOIN
 updated_table source
ON
 source.id = destination.id
SET
 destination.title = source.title, 
 destination.title_tag = source.title_tag,
 destination.keywords = source.keywords

如果您使用的是复制mysql服务器，请注意组合更新时的预测错误。

ANSI解决方案：

UPDATE
 products destination
SET
 destination.title = (SELECT title FROM updated_table source WHERE destination.id = source.id),
 destination.title_tag = (SELECT title_tag FROM updated_table source WHERE destination.id = source.id),
 destination.keywords = (SELECT keywords FROM updated_table source WHERE destination.id = source.id)

UPDATE
 products destination
JOIN
 updated_table source
ON
 source.id = destination.id
SET
 destination.title = source.title, 
 destination.title_tag = source.title_tag,
 destination.keywords = source.keywords

MySQL解决方案：

UPDATE
 products destination
SET
 destination.title = (SELECT title FROM updated_table source WHERE destination.id = source.id),
 destination.title_tag = (SELECT title_tag FROM updated_table source WHERE destination.id = source.id),
 destination.keywords = (SELECT keywords FROM updated_table source WHERE destination.id = source.id)

UPDATE
 products destination
JOIN
 updated_table source
ON
 source.id = destination.id
SET
 destination.title = source.title, 
 destination.title_tag = source.title_tag,
 destination.keywords = source.keywords

---

如果您使用的是复制mysql服务器，请注意组合更新的预测错误。

据我所知，更新的语法是

UPDATE tablename SET columnname=value WHERE condition;

不是

与其尝试

UPDATE products AS destination JOIN updated_table AS source 
ON source.id = destination.id
SET destination.title = source.title, 
destination.title_tag = source.title_tag,
destination.keywords = source.keywords

或

---

据我所知，Update的语法是

UPDATE tablename SET columnname=value WHERE condition;

不是

与其尝试

UPDATE products AS destination JOIN updated_table AS source 
ON source.id = destination.id
SET destination.title = source.title, 
destination.title_tag = source.title_tag,
destination.keywords = source.keywords

或

更快的版本：

UPDATE destination AS source, products AS destination
SET destination.title = source.title, 
destination.title_tag = source.title_tag,
destination.keywords = source.keywords
where source.id = destination.id

更快的版本：

UPDATE destination AS source, products AS destination
SET destination.title = source.title, 
destination.title_tag = source.title_tag,
destination.keywords = source.keywords
where source.id = destination.id

---

什么错误？我没有模式，所以你能提供一些额外的信息吗？什么错误？我没有模式，所以你能提供一些额外的信息吗？