大家帮我看看这段SQL哪出现了语法错误,为什么报列名无效,在PL／SQL里能正确执行啊Struts Problem ReportStruts has detected an unhandled exception:Messages: 列名无效 Hibernate operation: could not execute query; bad SQL grammar [ select a.* from knowledge_answers a inner join user_accounts d

Struts Problem Report

Struts has detected an unhandled exception:

Messages: 

    列名无效

    Hibernate operation: could not execute query; bad SQL grammar [ select a.* from knowledge_answers a inner join user_accounts d on a.answer_user=d.id where 1=1 and a.answer_user=15]; nested exception is java.sql.SQLException: 列名无效