php – 这个mysql查询有什么问题？

发布时间：2020-12-13 22:18:24 所属栏目：PHP教程来源：网络整理

导读：SELECT app_contracts.*,app_customers.id as customer,app_boards.id as board WHERE app_customers.id=app_contracts.customer_id AND app_boards.id=app_contracts.board_id ORDER BY app_contracts.id DESC 错误： Error Number: 1064 You have an error

SELECT app_contracts.*,app_customers.id as customer,app_boards.id as board
 WHERE app_customers.id=app_contracts.customer_id 
 AND app_boards.id=app_contracts.board_id 
 ORDER BY app_contracts.id DESC

错误：

Error Number: 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 ‘WHERE
app_customers.id=app_contracts.customer_id
AND app_boards.id=app_contracts’ at
line 2

解决方法

你需要在WHERE子句之前选择FROM something(一个表,比方说)

（编辑：李大同）

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