mysql - Unknown column 'xxx' in 'where clause'

Question

这个字段是存在的，在数据库编辑器中可以查询到.

Answer 1

Try this sql: select `id` from `user` where `account` = ?

Answer 2

Have you checked the case? If that still doesn’t work, you can add single quotes to the account. Also? Also add a single quote

Answer 3

Have you set up the database? use db.