从另一个表更新一个字段

Update one field from another table(从另一个表更新一个字段)

问题描述

我需要从另一个表的字段更新一个表的字段.我遵循了完全相同的链接 Stackoverflow 但我遇到了语法错误.

I need to update one table's fields from another table's fields. I followed exactly the same link Stackoverflow but I am getting a Syntax Error.

这是我的查询

UPDATE crm_leads
SET landlord_name = crm_owners.name,
last_name = crm_owners.last_name
FROM crm_owners
WHERE crm_owners.id =crm_leads.landlord_id
AND crm_leads.landlord_name = ''
AND crm_leads.last_name = ''

推荐答案

尝试在 UPDATE 之后但在 SET 之前放置一个内部联接.如果我正确理解你的架构，这样的事情应该可以工作:

Try placing an inner join after your UPDATE but before your SET. If I understand your schema correctly, something like this should work:

UPDATE crm_leads

INNER JOIN crm_owners
ON crm_owners.id = crm_leads.landlord_id

SET crm_leads.landlord_name = crm_owners.name,
crm_leads.last_name = crm_owners.last_name

WHERE crm_leads.landlord_name = ''
AND crm_leads.last_name = ''

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